CN107881382A - A kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder - Google Patents
A kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder Download PDFInfo
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- CN107881382A CN107881382A CN201711258324.5A CN201711258324A CN107881382A CN 107881382 A CN107881382 A CN 107881382A CN 201711258324 A CN201711258324 A CN 201711258324A CN 107881382 A CN107881382 A CN 107881382A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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Abstract
The invention belongs to Al alloy powder field of material preparation, is related to a kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder, includes each material of following weight/mass percentage composition：Mg：3.8%‑5.2%、Zn：0.2%‑0.5%、Ti：0.2%‑0.5%、Zr：0.04%‑0.2%、RE：0.06% 0.2%, surplus Al, wherein, RE is rare earth element combination, including Sc and rare earth M, M Ce, one kind in La, Nd and Yb or any mass ratio is a variety of；Sc and rare earth M quality is 6 than scope：（4‑9）.Method by adding from other elements proportion optimizing inside rare earth element and aluminium alloy to alloy matrix aluminum, the combination property of increasing material manufacturing articles made of aluminium alloy can be effectively improved, similar alloy product with being not added with rare earth element contrasts, rare earth modified high strength alumin ium alloy increasing material manufacturing product yield strength increment realizes the uniform lay of process powder bed up to 80 178 MPa.
Description
Technical field
The present invention relates to a kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder, belong to Al alloy powder powder material system
Standby field.
Background technology
Increasing material manufacturing (Additive Manufacturing) technology is a kind of cumulative manufacturing technology, i.e., by layer
The mode for being superimposed printing builds three-dimensional body, and the high efficiency high quality with complex geometric shapes entity can be achieved and be integrally melted into
It is prepared by shape, the shaping especially suitable for aerospace field complicated abnormal shape component.And due to the technology part high speed consolidation
Shaping characteristic, addition element in traditional handicraft can be avoided to be difficult to be uniformly distributed and easily with metallurgical imperfections such as shrinkage cavity shrinkage porosities
Drawback, improve product combination property.The first step of the technology is design three-dimensional digital model file, then is believed three-dimensional by software
It is a number of layered data to cease discrete, by 3D printer, uses special metal dusty material, Wax special material or thread height
Molecularly Imprinted Polymer, material is melted from level to level and then bonding gets up to realize the direct manufacture of 3D solid.
Aluminium alloy is one of a kind of nonferrous materials being most widely used in industry, suitable for Aeronautics and Astronautics, vapour
The industries such as car, ship, chemical industry.The rapid development of industry, higher requirement is proposed to the performance of contemporary aluminium alloy, such as high-strength
Degree, high rigidity, corrosion-resistant etc..
Al alloy powder is used for increases material manufacturing technology, is a kind of effective way for improving Al alloy powder application.
But during practical application, towards increases material manufacturing technology dedicated aluminium alloy powder design with prepare one to be increasing material manufacturing raw material supply
One of crucial problem faced to industry because by powder bed put based on increases material manufacturing technology to metal dust propose
Very high requirement：1st, it is high to powder diameter size requirements and require that particle diameter distribution is uniform；2nd, high are required to powdered ingredients, because
Other auxiliary materials are no longer additionally added during increasing material manufacturing, design and the proportioning of powdered ingredients are to directly affect part performance
One of central factor；3rd, powder sphericity requires high because by powder bed put based on each layer of increases material manufacturing technology
Working height is micron order (being often 30-80 μm), and only possessing the small particle metal dust of high sphericity could realize that powder exists
Uniform lay on substrate processing.
To realize these requirements, it will usually add trace element in alloy matrix aluminum and promote to be internally formed tiny precipitation
Phase, and can synchronously improve the internal organizational structure of aluminium alloy, crystal grain thinning, suppress micro-crack and formed, improve combination property.At this
In one operation, addition rare earth element is most commonly seen, and effect is also the most notable.But rare earth element species is various, selection is suitable dilute
Earth elements, while the quality proportioning for optimizing each element is to determine key challenge of the trace element to Al alloy powder strengthening effects.
Very few rare earth element and other matrix elements can not realize the enhancing purpose to Al alloys；Excessive rare earth element and its
His matrix element, due to the heat transfer difference that the hot physical difference between each element is brought, easily causes in laser processing procedure
Local heat history and follow-up thermal stress accumulation, and then cause crackle, deformation the defects of.
(1) trace element is added in alloy matrix aluminum in the prior art, is mainly used for the preparation of aluminium alloy block, often
The defects of element mixing is uneven, and component segregation is more serious, and material property each several part otherness is larger be present, to cause material to exist
Partial failure in load bearing process, and then influence the overall performance of material.Due to laser gain material manufacturing technology it is successively local into
The processing characteristic of shape, high is required to raw material powder, not requiring nothing more than powder has the sphericity of height to realize that powder is being processed
During uniform lay, while require powder internal component it is homogeneous with when avoiding the powder from being melted in tiny molten bath because part into
Point difference and cause local organization-property abnormality.Conventional machining techniques are different from, uneven material composition defect will be in laser
Significantly amplified during increasing material manufacturing, largely influence the overall performance of drip molding so that Al alloy powder
Laser gain material manufacture properties of product cannot ensure.Analyzed based on more than, powder raw material processed weigh according to the mass ratio of design
Afterwards, select suitable ball milling parameter particularly important.Mechanical milling process not only can effectively mix each element, while can be further broken
Change raw material, further increase the mixture homogeneity of powder.In mechanical milling process, between each material, acute between material and abrading-ball
Diffusion, infiltration of the element between different materials is can be achieved in strong mutual shock, and the further equal of material is realized from element dimensions
Even mixing.In addition, the rare earth element (Sc, Ce, La, Nd and Yb) and proportioning that are selected into can be achieved collaboration and improve alloy physics chemically
The purpose of energy, Al alloy conductives, magnetic conductivity are improved to a certain extent, optical property, high-performance work(is manufactured for laser gain material
Can material offer great potential；The high-temperature behaviors such as anti-corrosion property at high temperature, the high temperature rub resistance of alloy can be effectively improved, greatly
Expand the use range of Al alloy materials.Appropriate Mg, Ti, Zn addition can effectively improve the matrix strength of Al alloy materials,
Effectively undertake and transmit load；The addition of these elements simultaneously can improve material corrosion resistance at room temperature, rub resistance and
Room temperature strength.The Al powder body materials absorptivity extremely low to laser (9%, far below Ti 59%, Fe 45%) strongly limit Al
The laser machinability of alloy powder, and the addition of Zr, SC and other rare earth elements can effectively improve Al alloy powders to swashing
The absorbability of light, improve the laser applicability of Al alloy powders.
The content of the invention
The present invention is directed to requirements above, there is provided a kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder and its preparation
Method.Method by adding from other elements proportion optimizing inside rare earth element and aluminium alloy to alloy matrix aluminum, can be effective
The combination property of increasing material manufacturing articles made of aluminium alloy is improved, process powder bed is realized and uniformly laid.
To realize the technical purpose of the above, the present invention will use following technical scheme：A kind of increasing material manufacturing rare earth special
Modified high-strength aluminium alloy powder, include each material of following weight/mass percentage composition：
Mg：3.8%-5.2%
Zn：0.2%-0.5%
Ti：0.2%-0.5%
Zr：0.04%-0.2%
RE：0.06%-0.2%,
Surplus Al,
Wherein, RE combines for rare earth element, including Sc and rare earth M, M Ce, one kind in La, Nd and Yb or any matter
Measure a variety of of ratio；Sc and rare earth M quality is 6 than scope：(4-9).
As the improved technical scheme of the present invention, Al is among pure metallic aluminum, Al-Mg intermediate alloys powder, Al-Zn
Alloy powder, Al-Ti intermediate alloys powder, Al-Zr intermediate alloys powder, Al-RE intermediate alloys powder, Al-Mg-Zn centres are closed
Bronze end, Al-Mg-Ti intermediate alloys powder, Al-Mg-RE intermediate alloys powder, Al-Mg-Zr intermediate alloys powder, Al-Zn-
Ti intermediate alloys powder, Al-Zn-Zr intermediate alloys powder, Al-Zn-RE intermediate alloys powder, Al-Ti-Zr master alloyed powders
End, Al-Ti-RE intermediate alloys powder, Al-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-
Zn-Zr intermediate alloy powder, Al-Mg-Zn-RE intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE
Intermediate alloy powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, among Al-Zn-Ti-RE
In alloy powder, Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE
Between alloy powder, Al-Mg-Zn-Zr-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-
RE intermediate alloys powder or Al-Mg-Zn-Ti-Zr-RE intermediate alloy powder.
As the improved technical scheme of the present invention, Mg is from simple metal magnesium, Al-Mg intermediate alloys powder, Al-Mg-Zn
Intermediate alloy powder, Al-Mg-Ti intermediate alloys powder, Al-Mg-RE intermediate alloys powder, Al-Mg-Zr intermediate alloys powder,
Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder, Al-Mg-Zn-RE intermediate alloys powder, Al-
Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE intermediate alloys powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Mg-
Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE intermediate alloys powder,
Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, Mg-Zn intermediate alloys powder, Mg-Ti intermediate alloys powder, Mg-RE centres are closed
In bronze end, Mg-Zr intermediate alloys powder, Mg-Zn-Ti intermediate alloys powder, Mg-Zn-Zr intermediate alloys powder, Mg-Zn-RE
Between alloy powder, Mg-Ti-Zr intermediate alloys powder, Mg-Ti-RE intermediate alloys powder, Mg-Zr-RE intermediate alloys powder, Mg-
Zn-Ti-RE intermediate alloys powder, Mg-Zn-Zr-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder or Mg-Zn-
Ti-Zr-RE intermediate alloy powder.
As the improved technical scheme of the present invention, Zn is from simple metal zinc, Al-Zn intermediate alloys powder, Al-Mg-Zn
Intermediate alloy powder, Al-Zn-Ti intermediate alloys powder, Al-Zn-Zr intermediate alloys powder, Al-Zn-RE intermediate alloys powder,
Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder, Al-Mg-Zn-RE intermediate alloys powder, Al-
Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-
Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE master alloyed powders
End, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, Mg-Zn master alloyed powders
End, Mg-Zn-Ti intermediate alloys powder, Mg-Zn-Zr intermediate alloys powder, Mg-Zn-RE intermediate alloys powder, Mg-Zn-Ti-RE
Intermediate alloy powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-Zn-Ti-Zr-RE intermediate alloys powder, Zn-Ti intermediate alloys
In powder, Zn-Zr intermediate alloy powder, Zn-RE intermediate alloys powder, Zn-Ti-RE intermediate alloys powder or Zn-Ti-Zr-RE
Between alloy powder.
As the improved technical scheme of the present invention, Ti is from pure metallic titanium, Al-Ti intermediate alloys powder, Al-Mg-Ti
Intermediate alloy powder, Al-Zn-Ti intermediate alloys powder, Al-Ti-Zr intermediate alloys powder, Al-Ti-RE intermediate alloys powder,
Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE intermediate alloys powder, Al-
Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder, Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-
Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE intermediate alloys powder,
Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, Mg-Ti intermediate alloys powder,
In Mg-Zn-Ti intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Mg-Ti-RE intermediate alloys powder, Mg-Zn-Ti-RE
Between alloy powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-Zn-Ti-Zr-RE intermediate alloys powder, Zn-Ti master alloyed powders
End, Ti-Zr intermediate alloys powder, Ti-RE intermediate alloys powder, Zn-Ti-RE intermediate alloys powder, Ti-Zr-RE intermediate alloys
Powder or Zn-Ti-Zr-RE intermediate alloy powder.
As the improved technical scheme of the present invention, Zr is in metal zirconium, Al-Zr intermediate alloys powder, Al-Mg-Zr
Between alloy powder, Al-Zn-Zr intermediate alloys powder, Al-Ti-Zr intermediate alloys powder, Al-Zr-RE intermediate alloys powder, Al-
Mg-Zn-Zr intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Zn-
Ti-Zr intermediate alloys powder, Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-
Zn-Zr-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder,
Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, Mg-Zr intermediate alloys powder, Mg-Zn-Zr intermediate alloys powder, Mg-Ti-Zr
Intermediate alloy powder, Al-Mg-Zr-RE intermediate alloys powder, Mg-Zn-Zr-RE intermediate alloys powder, among Mg-Ti-Zr-RE
Alloy powder, Mg-Zn-Ti-Zr-RE intermediate alloys powder, Zn-Zr intermediate alloy powder, Zn-Ti-Zr intermediate alloys powder,
Zn-Zr-RE intermediate alloys powder, Zn-Ti-Zr-RE intermediate alloys powder, Ti-Zr intermediate alloys powder, Ti-Zr-RE centres are closed
Bronze end or Zr-RE intermediate alloy powder.
A kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy raw powder's production technology comprises the following steps：
Step 1: weighing Mg, Zn, Ti, Zr, Sc, RE and Al of proportional quantity, it is well mixed using ball mill；Mg、Zn、
Ti, Zr, Sc, RE and Al diameter of particle are required to<1mm；
Step 2: using gas atomization legal system powder, its parameter is：METAL HEATING PROCESS temperature is 800 DEG C -850 DEG C, gas pressure
For 8 × 105Pa~9.6 × 105Pa, powder cabin inside processed oxygen content are less than 10ppm；
Step 3: being required according to powder diameter, the powder obtained to above-mentioned steps sieves, the height of size needed for acquisition
Strength aluminum alloy powder.
Remaining high strength alumin ium alloy Powder Recovery is sieved as the improved technical scheme of the present invention, in addition to step 3 again
Utilize, i.e., participate in gas-atomized powder as raw material again.
As the improved technical scheme of the present invention, when ball mill mixes, ratio of grinding media to material is (8-10):(1-2), rotational speed of ball-mill are
200-400rpm, Ball-milling Time 4-8h.
Beneficial effect
1. by adding appropriate Zr, SC in inventive formulation, can promote to be internally formed tiny precipitated phase (such as Al3Sc and Al3
(Sc, Zr)), pairing gold utensil has direct precipitation strength to act on；On the other hand, these tiny precipitated phases can turn into effective crystal grain core
The heart, refining alloy crystal grain, realize product synchronization Strengthening and Toughening.
2. appropriate Mg, Ti, Zn addition can effectively improve the matrix strength of Al alloy materials, load is effectively undertaken and transmitted
Lotus；The addition of these elements can improve corrosion resistance, rub resistance and the room temperature strength of material at room temperature simultaneously.
3. collaboration, which can be achieved, in the rare earth element (Sc, Ce, La, Nd and Yb) and proportioning that are selected into improves alloy physics chemical property
Purpose, improve Al alloy conductives, magnetic conductivity to a certain extent, optical property, performance function manufactured for laser gain material
Material provides great potential；The high-temperature behaviors such as anti-corrosion property at high temperature, the high temperature rub resistance of alloy can be effectively improved, are greatly expanded
The big use range of Al alloy materials.
The 4.Al powder body materials absorptivity extremely low to laser (9%, far below Ti 59%, Fe 45%) strongly limit Al
The laser machinability of alloy powder, and the addition of Zr, SC and other rare earth elements can effectively improve Al alloy powders to swashing
The absorbability of light, improve the laser applicability of Al alloy powders.
5. by ball-milling technology mixed powder raw material, each element not only can be effectively mixed, while can be further broken
Change raw material, further increase the mixture homogeneity of powder；In mechanical milling process, between each material, acute between material and abrading-ball
Diffusion, infiltration of the element between different materials is can be achieved in strong mutual shock, and the further equal of material is realized from element dimensions
Even mixing.
6. oxygen content inside strict control device in pulverizing process, can prevent from mixing unnecessary element inside powder, reduce powder
Last performance；Using gas atomization legal system powder, powder sphericity can be ensured to greatest extent, beneficial to powder bed during increasing material manufacturing
Put.
7. the reason for present invention prepares spherical powder using atomization, which also resides in, can be achieved whole raw material in atomization process
Fusing, so as to promote each element further to homogenize；The high-temperature heating process of raw material forms Al for material internal simultaneously3Sc
And Al3Hardening constituents such as (Sc, Zr) provides sufficient thermodynamic power, and the high-quality of Al alloy powder materials can be realized from element dimensions
Amount shaping.
Brief description of the drawings：
The made powder SEM figures of Fig. 1 embodiments 1；
Fig. 2 schemes by the increasing material manufacturing product internal microstructure SEM that raw material prepare of 1 made powder of embodiment；
The made powder SEM figures of Fig. 3 embodiments 2；
Fig. 4 schemes by the increasing material manufacturing product internal microstructure SEM that raw material prepare of 2 made powder of embodiment；
The made powder SEM figures of Fig. 5 embodiments 3；
Fig. 6 schemes by the increasing material manufacturing product internal microstructure SEM that raw material prepare of 3 made powder of embodiment.
Specific embodiment：
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It is interpreted as embodiment only to use
In the explanation present invention rather than limitation the scope of the present invention.
A kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder in the application, including following weight/mass percentage composition
Each material：
Mg：3.8%-5.2%
Zn：0.2%-0.5%
Ti：0.2%-0.5%
Zr：0.04%-0.2%
RE：0.06%-0.2%,
Surplus Al,
Wherein, RE combines for rare earth element, including Sc and rare earth M, M Ce, one kind in La, Nd and Yb or any matter
Measure a variety of of ratio；Sc and rare earth M quality is 6 than scope：(4-9).
Wherein, Al derives from pure metallic aluminum, may also come from sieving remaining high strength alumin ium alloy Powder Recovery to step 3
Powder, such as：Al-Mg intermediate alloys powder, Al-Zn intermediate alloys powder, Al-Ti intermediate alloys powder, Al-Zr master alloyed powders
Closed among end, Al-RE intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Mg-Ti intermediate alloys powder, Al-Mg-RE
Bronze end, Al-Mg-Zr intermediate alloys powder, Al-Zn-Ti intermediate alloys powder, Al-Zn-Zr intermediate alloys powder, Al-Zn-
RE intermediate alloys powder, Al-Ti-Zr intermediate alloys powder, Al-Ti-RE intermediate alloys powder, Al-Zr-RE master alloyed powders
End, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder, Al-Mg-Zn-RE intermediate alloys powder,
Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE intermediate alloys powder, Al-Mg-Zr-RE intermediate alloys powder, Al-
Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder, Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-
Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys powder,
Among Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder or Al-Mg-Zn-Ti-Zr-RE
Alloy powder.
Wherein, Mg derives from simple metal magnesium, may also come from sieving remaining high strength alumin ium alloy Powder Recovery to step 3
Powder, such as：Al-Mg intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Mg-Ti intermediate alloys powder, Al-Mg-RE
Intermediate alloy powder, Al-Mg-Zr intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys
Powder, Al-Mg-Zn-RE intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE intermediate alloys powder,
Al-Mg-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE master alloyed powders
End, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, Mg-Zn master alloyed powders
End, Mg-Ti intermediate alloys powder, Mg-RE intermediate alloys powder, Mg-Zr intermediate alloys powder, Mg-Zn-Ti master alloyed powders
In end, Mg-Zn-Zr intermediate alloys powder, Mg-Zn-RE intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Mg-Ti-RE
Between alloy powder, Mg-Zr-RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Zn-Zr-RE master alloyed powders
End, Mg-Ti-Zr-RE intermediate alloys powder or Mg-Zn-Ti-Zr-RE intermediate alloy powder.
Wherein, Zn derives from simple metal zinc, may also come from sieving remaining high strength alumin ium alloy Powder Recovery to step 3
Powder, such as：Al-Zn intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Zn-Ti intermediate alloys powder, Al-Zn-Zr
Intermediate alloy powder, Al-Zn-RE intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys
Powder, Al-Mg-Zn-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder,
Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys
Powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE
Intermediate alloy powder, Mg-Zn intermediate alloys powder, Mg-Zn-Ti intermediate alloys powder, Mg-Zn-Zr intermediate alloys powder, Mg-
Zn-RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-Zn-Ti-
Zr-RE intermediate alloys powder, Zn-Ti intermediate alloys powder, Zn-Zr intermediate alloy powder, Zn-RE intermediate alloys powder, Zn-
Ti-RE intermediate alloys powder or Zn-Ti-Zr-RE intermediate alloy powder.
Wherein, Ti derives from pure metallic titanium, may also come from sieving remaining high strength alumin ium alloy Powder Recovery to step 3
Powder, such as：Al-Ti intermediate alloys powder, Al-Mg-Ti intermediate alloys powder, Al-Zn-Ti intermediate alloys powder, Al-Ti-Zr
Intermediate alloy powder, Al-Ti-RE intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys
Powder, Al-Mg-Ti-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder,
Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE master alloyed powders
In end, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE
Between alloy powder, Mg-Ti intermediate alloys powder, Mg-Zn-Ti intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Mg-Ti-
RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-Zn-Ti-Zr-RE
In intermediate alloy powder, Zn-Ti intermediate alloys powder, Ti-Zr intermediate alloys powder, Ti-RE intermediate alloys powder, Zn-Ti-RE
Between alloy powder, Ti-Zr-RE intermediate alloys powder or Zn-Ti-Zr-RE intermediate alloy powder.
Wherein, Zr is in metal zirconium, Al-Zr intermediate alloys powder, Al-Mg-Zr intermediate alloys powder, Al-Zn-Zr
Between alloy powder, Al-Ti-Zr intermediate alloys powder, Al-Zr-RE intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder,
Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, Al-
Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys powder,
Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE centres are closed
Bronze end, Mg-Zr intermediate alloys powder, Mg-Zn-Zr intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Al-Mg-Zr-
RE intermediate alloys powder, Mg-Zn-Zr-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-Zn-Ti-Zr-RE
Intermediate alloy powder, Zn-Zr intermediate alloy powder, Zn-Ti-Zr intermediate alloys powder, Zn-Zr-RE intermediate alloys powder, Zn-
Ti-Zr-RE intermediate alloys powder, Ti-Zr intermediate alloys powder, Ti-Zr-RE intermediate alloys powder or Zr-RE master alloyed powders
End.
Embodiment 1
Step (1)：Dispensing
A kind of increasing material manufacturing rare earth special modified high-strength Al alloy powder body inner element mass percent of the present invention
For：Mg：4.2%, Zn：0.5%, Ti：0.35%, Zr：0.2%, RE：0.2% and surplus Al, wherein RE are rare earth element group
Close, be Sc (0.15%) and Ce (0.05%).Simple metal or intermediate alloy powder, powder diameter requirement are weighed according to above ratio
<1mm, it is well mixed using ball mill.
Step (2)：Raw material ball milling mixing
Simple metal or intermediate alloy powder, powder diameter requirement are weighed according to above ratio<1mm, mixed using ball mill
Uniformly.Ratio of grinding media to material is 10:1, rotational speed of ball-mill 200rpm, Ball-milling Time 5h.
Step (3)：Powder processed
Using gas atomization legal system powder, METAL HEATING PROCESS temperature is provided with as 810 DEG C, gas pressure is 9.6 × 105Pa,
Equipment powder cabin vacuumizes, and ensures internal oxygen content 8ppm.
Step (4)：Powder Recovery and storage
Required according to powder diameter, the powder obtained to above-mentioned steps sieves, and it is excessive or too small to filter out particle diameter
Metal dust, then it is sealed, made powder morphology such as Fig. 1.
Made powder is made by the printing of increasing material manufacturing equipment as raw material and meets national standard by the use of in embodiment 1
Mechanical stretch sample, specific print procedure is as follows：(1) 3D part models are drawn using cad tools；(2) using specialty section
Software by the three-dimensional information of part model it is discrete be 2-D data；(3) powdering system in SLM device is to be added what is be thoroughly mixed
Work powder is uniformly laid on manufacture substrate, in the two-dimensional signal selective scanning bisque that subsequent thermal source is provided according to computer
Region, the region experience rapidly solidification be configured to first two-dimensional section；(4) control system operation formation cylinder down adjusts one
Individual powder layer thickness, while manipulate and up adjust a powder layer thickness for powder cylinder, powdering system is laid on the basis of originally formed
Second layer powder to be processed, subsequent thermal source shape second layer two-dimensional section according to second layer model data selective scanning bisque,
And form good metallurgical binding with last layer two-dimensional section；(5) repeat step (4) successively shapes, and is completed until product produces.Tool
Body machined parameters are as follows：Raster pattern laser scanning strategy, 70 μm of laser spot diameter, 50 μm of laser scanning spacing, powder layer thickness
50 μm, laser scanning speed 3000mm/s, laser power 350W.Detection obtains internal microstructure pattern (such as Fig. 2) and mechanics
Performance, product tensile strength reach 270MPa, internal organizational structure fine uniform, and inside is formed without obvious micro-crack.Constituent analysis
Know, the application formula is formed just like Al after atomization3(Sc, Zr) etc. new phase.
The mechanical property of style prepared by the embodiment 1 of table 1
Embodiment 2
Step (1)：Dispensing
A kind of increasing material manufacturing rare earth special modified high-strength Al alloy powder body inner element mass percent of the present invention
For：Mg：4.2%, Zn：0.5%, Ti：0.35%, Zr：0.2%, RE：0.2% and surplus Al, wherein RE are rare earth element group
Close, be Sc (0.14%) and La (0.06%).Simple metal or intermediate alloy powder, powder diameter requirement are weighed according to above ratio
<1mm, it is well mixed using ball mill.
Step (2)：Raw material ball milling mixing
Simple metal or intermediate alloy powder, powder diameter requirement are weighed according to above ratio<1mm, mixed using ball mill
Uniformly.Ratio of grinding media to material is 10:1, rotational speed of ball-mill 200rpm, Ball-milling Time 5h.
Step (3)：Powder processed
Using gas atomization legal system powder, METAL HEATING PROCESS temperature is provided with as 820 DEG C, gas pressure is 9.6 × 105Pa,
Equipment powder cabin vacuumizes, and ensures internal oxygen content 8ppm.
Step (4)：Powder Recovery and storage
Required according to powder diameter, the powder obtained to above-mentioned steps sieves, and it is excessive or too small to filter out particle diameter
Metal dust, then it is sealed, made powder morphology such as Fig. 3.
Made powder is made by the printing of increasing material manufacturing equipment as raw material and meets national standard by the use of in embodiment 2
Mechanical stretch sample, increasing material manufacturing equipment print procedure and laser processing parameter are consistent with embodiment 1.Detection obtains internal aobvious
Micro-assembly robot pattern (such as Fig. 4) and mechanical property, product tensile strength reach 275MPa, internal organizational structure fine uniform, internal nothing
Obvious micro-crack is formed.
The embodiment 2 of table 2 prepares the mechanical property of style
Embodiment 3
Step (1)：Dispensing
A kind of increasing material manufacturing rare earth special modified high-strength Al alloy powder body inner element mass percent of the present invention
For：Mg：4.2%, Zn：0.5%, Ti：0.35%, Zr：0.2%, RE：0.2% and surplus Al, wherein RE are rare earth element group
Close, be Sc (0.12%), Nd (0.03%) and Yb (0.03%).Simple metal or intermediate alloy powder are weighed according to above ratio,
Powder diameter requirement<1mm, it is well mixed using ball mill.
Step (2)：Raw material ball milling mixing
Simple metal or intermediate alloy powder, powder diameter requirement are weighed according to above ratio<1mm, mixed using ball mill
Uniformly.Ratio of grinding media to material is 10:1, rotational speed of ball-mill 200rpm, Ball-milling Time 5h.
Step (3)：Powder processed
Using gas atomization legal system powder, METAL HEATING PROCESS temperature is provided with as 815 DEG C, gas pressure is 9.6 × 105Pa,
Equipment powder cabin vacuumizes, and ensures internal oxygen content 8ppm.
Step (4)：Powder Recovery and storage
Required according to powder diameter, the powder obtained to above-mentioned steps sieves, and it is excessive or too small to filter out particle diameter
Metal dust, then it is sealed, made powder morphology such as Fig. 5.
Made powder is made by the printing of increasing material manufacturing equipment as raw material and meets national standard by the use of in embodiment 3
Mechanical stretch sample, increasing material manufacturing equipment print procedure and laser processing parameter are consistent with embodiment 1.Detection obtains internal aobvious
Micro-assembly robot pattern (such as Fig. 6) and mechanical property, product tensile strength reach 265MPa, internal organizational structure fine uniform, internal nothing
Obvious micro-crack is formed.
The embodiment 3 of table 3 prepares the mechanical property of style
Claims (9)
1. a kind of increasing material manufacturing rare earth special modified high-strength aluminium alloy powder, it is characterised in that including following weight/mass percentage composition
Each material：
Mg：3.8%-5.2%
Zn：0.2%-0.5%
Ti：0.2%-0.5%
Zr：0.04%-0.2%
RE：0.06%-0.2%,
Surplus Al,
Wherein, RE combines for rare earth element, including Sc and rare earth M, M Ce, one kind in La, Nd and Yb or any mass ratio
It is a variety of；Sc and rare earth M quality is 6 than scope：（4-9）.
A kind of 2. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 1, it is characterised in that Al
In pure metallic aluminum, Al-Mg intermediate alloys powder, Al-Zn intermediate alloys powder, Al-Ti intermediate alloys powder, Al-Zr
Between alloy powder, Al-RE intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Mg-Ti intermediate alloys powder, Al-Mg-
RE intermediate alloys powder, Al-Mg-Zr intermediate alloys powder, Al-Zn-Ti intermediate alloys powder, Al-Zn-Zr master alloyed powders
In end, Al-Zn-RE intermediate alloys powder, Al-Ti-Zr intermediate alloys powder, Al-Ti-RE intermediate alloys powder, Al-Zr-RE
Between alloy powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder, close among Al-Mg-Zn-RE
Bronze end, Al-Mg-Ti-Zr intermediate alloys powder, Al-Mg-Ti-RE intermediate alloys powder, Al-Mg-Zr-RE master alloyed powders
End, Al-Zn-Ti-Zr intermediate alloys powder, Al-Zn-Ti-RE intermediate alloys powder, Al-Ti-Zr-RE intermediate alloys powder,
Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys
Powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder or Al-Mg- Zn-Ti-Zr-
RE intermediate alloy powder.
A kind of 3. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 1, it is characterised in that Mg
From simple metal magnesium, Al-Mg intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Mg-Ti intermediate alloys powder,
Al-Mg-RE intermediate alloys powder, Al-Mg-Zr intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr
Intermediate alloy powder, Al-Mg-Zn-RE intermediate alloys powder, Al-Mg-Ti-Zr intermediate alloys powder, among Al-Mg-Ti-RE
In alloy powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE
Between in alloy powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Mg- Zn-Ti-Zr-RE intermediate alloys powder, Mg-Zn
Between alloy powder, Mg-Ti intermediate alloys powder, Mg-RE intermediate alloys powder, Mg-Zr intermediate alloys powder, among Mg-Zn-Ti
Alloy powder, Mg-Zn-Zr intermediate alloys powder, Mg-Zn-RE intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Mg-
In Ti-RE intermediate alloys powder, Mg-Zr-RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Zn-Zr-RE
Between alloy powder, Mg-Ti-Zr-RE intermediate alloys powder or Mg- Zn-Ti-Zr-RE intermediate alloy powder.
A kind of 4. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 1, it is characterised in that Zn
From simple metal zinc, Al-Zn intermediate alloys powder, Al-Mg-Zn intermediate alloys powder, Al-Zn-Ti intermediate alloys powder,
Al-Zn-Zr intermediate alloys powder, Al-Zn-RE intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Zn-Zr
Intermediate alloy powder, Al-Mg-Zn-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, among Al-Zn-Ti-RE
Alloy powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE intermediate alloys powder, Al-Mg-Zn-Zr-RE
Intermediate alloy powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-
Ti-Zr-RE intermediate alloys powder, Mg-Zn intermediate alloys powder, Mg-Zn-Ti intermediate alloys powder, Mg-Zn-Zr intermediate alloys
Powder, Mg-Zn-RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-
Zn-Ti-Zr-RE intermediate alloys powder, Zn-Ti intermediate alloys powder, Zn-Zr intermediate alloy powder, Zn-RE master alloyed powders
End, Zn-Ti-RE intermediate alloys powder or Zn-Ti-Zr-RE intermediate alloy powder.
A kind of 5. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 1, it is characterised in that Ti
From pure metallic titanium, Al-Ti intermediate alloys powder, Al-Mg-Ti intermediate alloys powder, Al-Zn-Ti intermediate alloys powder,
Al-Ti-Zr intermediate alloys powder, Al-Ti-RE intermediate alloys powder, Al-Mg-Zn-Ti intermediate alloys powder, Al-Mg-Ti-Zr
Intermediate alloy powder, Al-Mg-Ti-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, among Al-Zn-Ti-RE
In alloy powder, Al-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Ti-RE
Between alloy powder, Al-Mg-Ti-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg- Zn-
Ti-Zr-RE intermediate alloys powder, Mg-Ti intermediate alloys powder, Mg-Zn-Ti intermediate alloys powder, Mg-Ti-Zr intermediate alloys
Powder, Mg-Ti-RE intermediate alloys powder, Mg-Zn-Ti-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg-
Zn-Ti-Zr-RE intermediate alloys powder, Zn-Ti intermediate alloys powder, Ti-Zr intermediate alloys powder, Ti-RE master alloyed powders
End, Zn-Ti-RE intermediate alloys powder, Ti-Zr-RE intermediate alloys powder or Zn-Ti-Zr-RE intermediate alloy powder.
A kind of 6. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 1, it is characterised in that Zr
From metal zirconium, Al-Zr intermediate alloys powder, Al-Mg-Zr intermediate alloys powder, Al-Zn-Zr intermediate alloys powder, Al-
In Ti-Zr intermediate alloys powder, Al-Zr-RE intermediate alloys powder, Al-Mg-Zn-Zr intermediate alloys powder, Al-Mg-Ti-Zr
Between alloy powder, Al-Mg-Zr-RE intermediate alloys powder, Al-Zn-Ti-Zr intermediate alloys powder, close among Al-Ti-Zr-RE
In bronze end, Al-Mg-Zn-Ti-Zr intermediate alloys powder, Al-Mg-Zn-Zr-RE intermediate alloys powder, Al-Mg-Ti-Zr-RE
Between alloy powder, Al-Zn-Ti-Zr-RE intermediate alloys powder, Al-Mg-Zn-Ti-Zr-RE intermediate alloys powder, among Mg-Zr
Alloy powder, Mg-Zn-Zr intermediate alloys powder, Mg-Ti-Zr intermediate alloys powder, Al-Mg-Zr-RE intermediate alloys powder,
Mg-Zn-Zr-RE intermediate alloys powder, Mg-Ti-Zr-RE intermediate alloys powder, Mg- Zn-Ti-Zr-RE intermediate alloys powder,
Zn-Zr intermediate alloy powder, Zn-Ti-Zr intermediate alloys powder, Zn-Zr-RE intermediate alloys powder, Zn-Ti-Zr-RE centres are closed
Bronze end, Ti-Zr intermediate alloys powder, Ti-Zr-RE intermediate alloys powder or Zr-RE intermediate alloy powder.
7. according to any described increasing material manufacturing rare earth special modified high-strength aluminium alloy powders of claim 1-6, it is characterised in that
Its preparation method comprises the following steps：
Step 1: weighing Mg, Zn, Ti, Zr, Sc, RE and Al of proportional quantity, it is well mixed using ball mill；Mg、Zn、Ti、
Zr, Sc, RE and Al diameter of particle are required to<1mm；
Step 2: using gas atomization legal system powder, its parameter is：METAL HEATING PROCESS temperature is 800 oC-850 oC, and gas pressure is
8 × 105 Pa ~ 9.6 × 105Pa, powder cabin inside processed oxygen content are less than 10 ppm；
Step 3: being required according to powder diameter, the powder obtained to above-mentioned steps sieves, the high-strength aluminium of size needed for acquisition
Alloy powder.
8. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 7, it is characterised in that also include
Remaining high strength alumin ium alloy Powder Recovery is sieved to step 3 to recycle, i.e., participates in aerosolization legal system as raw material again
Powder.
9. increasing material manufacturing rare earth special modified high-strength aluminium alloy powder according to claim 7, it is characterised in that ball mill
During mixing, ratio of grinding media to material is（8-10）:（1-2）, rotational speed of ball-mill is 200-400 rpm, Ball-milling Time 4-8 h.
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| CN114411023A (en) * | 2022-01-12 | 2022-04-29 | 江西宝航新材料有限公司 | High-toughness aluminum alloy powder material for laser additive, preparation method and application |
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| CN114559046A (en) * | 2022-01-26 | 2022-05-31 | 中北大学 | Preparation method of rare earth modified 17-4PH high-strength steel powder for additive manufacturing |
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