JPS58181838A - Copper-base functional alloy - Google Patents

Abstract

PURPOSE:To obtain the copper-base functional alloy improved in fragility at grain boundaries, ductility, workability and fatigue resistance, by letting Cu to contain specified amounts of Al and V as main components. CONSTITUTION:The copper-base functional alloy comprises 8-18wt% Al, 0.05- 3% V and the balance Cu. The copper-based functional alloy may comprise 2- 18% Al, 0.05-3% V, one or more of Fe, Co, Ni, Si, Sn, Ag, Mg, Mn, Sb, Ga, Ge and In in the amount to enable the alloy to have a beta phase structure, and the balance Cu. This alloy has the features that crystal grains in a cast product are made fine by adding the small amount of V without the substantial fluctuation in the temp. range of transforming the Cu-Al alloy and that the growth of the crystal grains is suppressed in the step of heating it for homogenizing, hot- working or converting it into the beta structure.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes a copper-based functional alloy having shape memory effect, anti-vibration effect, etc.
The purpose of the present invention is to obtain the axial properties of a copper-based alloy having the above-mentioned hardness.

Here, the shape memory effect or elasticity behavior is a mechanism that is said to be caused by the martensite formation of the alloy. A unidirectionally or reversibly restored agglomerate appears at the threshold between the shape at the temperature side and the shape at the low temperature side. There are some people who claim that a machine can perform a tear-shaped meeting with a temperature that is not thermally stable.
Stretching refers to the phenomenon in which the above large unidirectional strain completely recovers after the deformation stress is removed.

In this case, the reed vibration damping effect is a moderate effect because the vibration energy is absorbed by the contribution of the rose 1 of the martendate twin boundary.

Good shape memory effect, superelastic behavior, or vibration damping effect (hereinafter collectively referred to as functional effects).11) In addition to Ni-Ti alloys, Au-Cd alloys, etc., copper alloys include Cu alloys. -Cu-ZEI-kL alloy etc. are known.

However, the Ni-Ti alloy has good properties [although it has seven calendars, power U work, and heat treatment 1 are very bad #
Since gold, which is a metal alloy, also has a value of ﾆ, alloy comparison products are also S.
Since it is monovalent, the range of practical use is also limited.

In addition, the Au-Cd alloy has a small Ik flexibility, the source material is jibill Q, and the Cd is available in ships and the withdrawal is 1 minute away, so it has not been put into practical use and remains the subject of academic research. .

On the other hand, Cu-A1. , Cu-Z-M alloy and other copper-based alloys are inexpensive as fillers, and their noodle-making workability is comparatively easy, so KJ91 is eagerly awaited for industrial use at the current price.

However, these metal alloys suffer from several shortcomings in their raw form.

However, polycrystalline materials that can be processed industrially by #C do not necessarily have sufficient material properties such as negative properties, and are easily rejected when given a large pregnancy.

Improvement is also desired in terms of difficulty in swallowing ``Maku#IIIL'' for returning stools.

The difference between these polycrystals is that they are alloys with a single composition, and the combination of single-rate crystals has excellent mechanical properties.
The fragility of K-grain boundaries and KFi, which affects fIs-based functional alloys.
In the manufacturing process, in order to be particular about the composition, it is subjected to equalization, baking, dead salt, heating, and moxibustion treatment from β phase to imparting ability. Betaization processing) etc. ^-
There are many heated strata, and the grain size during the manufacturing process often becomes coarse, but K, which is expected to have isokinetic properties, is more axial when it is refined, and this is also considered to be a contributing factor. Conceivable.

This invention provides 9kl at the above-mentioned lk point in copper-based alloys.
It is a work that has been done with the utmost care and attention, and the function is t1
It is a metaphor for ductility and fatigue without changing anything.
It is.

First, the kite IK of the copper-based alloy of this invention is Beni 8~
181ji whisper and Vo, 06-8 weight - 1 remainder C-yop t% mold, turtle 2 A12-183kk%, v
o, o5~a Weight SK Sara K Fes Co, Ni, S
i, Sn, Ag, Mg%Mn%SJ (yas G
It is assumed that the alloy contains one or more of the metals such as es In within the range of β-phase steelmaking kML, and the rest is Cu, and this is K. Therefore, the shape memory effect, superelastic behavior, and anti-vibration future are all very interesting.

Depending on the combination of these &
It is an alloy of j-composition and -4! It is difficult to use it for the purpose of r-pole.

As described above, if the III & Noh alloy KsI of this invention is specified and the crimson content ii is defined as 2 to 18]k lid, and At or 2s is rubbed, the improvement effect will be small even in strong t, and the change will be 1. Is the temperature range generally too low and the temperature near the boat temperature (-hO ~ 100℃) K'J? It is a material that exhibits a good wet storage effect, and even if it is added in excess of 18, it will only unnecessarily increase processability, and it will be effective for modifying the purpose. 〇And this amount of crimson is,! Cu- as an IA comprehensive metal alloy composition
ALr)! In the case of the original alloy, 8 to 181 fi- is preferable, and other than that, there is no separation effect and there is no separation.
This or C1,05]kk-heman is not enough to have a horizontal writing effect, and adding more than 8-fold 'Ir:s-
It is a common misconception that simply changing the uniformity of the noodles to just one noodle is expected to have the effect of changing the texture of the noodles.

In addition, in this invention, an alloy consisting of Aj, V and the remaining bCu is transformed with F for the purpose of emulating the ankylosis that has significantly increased the seismic range.
e, Co%Ni, Si, Sn, Ag3, Sb
, Ga.

It is a 4'b effect to contain one or more of the gold members of Ges In within the range in which the alloy can have a β phase Th'ffLt.

According to the content of Vμ, 7 added in this invention,
It hardly vibrates in the temperature range of 8-karat gold, and improves the brittleness in the ki-plate valve, as well as suppresses the coarsening of the crystal grain size during the heat treatment of lumberjacks in the Iizou root. In addition, it improves the corrosion resistance and fatigue resistance of the multi-ki1 base metal, and improves the flexibility during practical use as well as the workability during evacuation.

As described above, this invention has the advantage that Cu-
The crystal grains of the abrasive material are made finer, and further homogenized, hot worked, and β
The force for oxidation treatment is to suppress the &-jlc association during the ripening process, and therefore, the *cold stage of the alloy is inhibited by brittle osmosis outside the grains during processing. This improves the processability and processability of the moxibustion crystal alloy material, which is advantageous for industrial use because it can prevent the formation of epilepsy.

This invention will be explained in detail with reference to examples below.

5 to 9 Ga 1 Current-carrying electric pot base metal, pure 99.99% aluminum, electric-1Cu-80%V* alloy and Cu-15
%Mn mother alloy such as gold and kl under an argon gas atmosphere.
A 20-g fjs-based alloy kTo solution with a composition as shown in & was left behind.

This was uniformly annealed at 800℃ for 5 hours, then pressed at 91ml1K with a heat ratio of -, and then its surface was
It was made into a tape with a lightness of approximately 100%.

This tape was water-quenched at 800° C. in a straight state 1 to obtain a sample for investigating the gradual wear effect.

During this period, we also observed the condition of cracking.

We investigated the effectiveness of the rice used in Makuriryo, and the details are listed in Table 2.

Cocoon 2 above Cocoon 2 The alloy of Rikoko has good functional properties such as shape memory effect, and has a special KCu-At binary combination with a special temperature range [lower and higher temperature range]. The combination of 9 and 5 signifies that your future will be great.

The cold threshold pressure and other processing tests showed that the temperament was also improved compared to the Kuhiei alloy.

In the case of 4H alloys containing V and excessive F& added, such as 4H alloy laminate 11, on the contrary, it had a negative effect on function and performance.

Example 2 Using the sample in Example 1 showing a quasi-biased shape distribution tk effect, the gradual characteristics of these alloys K were calculated using one grain of sweetfish m'tm, and the seven moving pots are shown in Table 8. Ta.

Table 8 The mechanical properties of the alloys of this invention are listed in Table 2 and 86 below. It can also be seen that both the eclipse strength and elongation at break have been significantly revised, and the PL and grain size have been made finer. Naohiki &
Gather the rice of the sample after harvesting, and compare with vermilion, 4Ii, upper 7.
~11 all vibrated at grain boundaries, but this invention's motive force! ~6 is the appearance of the grain [it was bleeding].

118 Among the alloys shown in the m1 table of Example 1, the similar Mima alloy A3 and round plate alloy OA9 of Namijuku Onarashijo were tested in unilateral tension and in a slow position. Bird life research book 4
I got the number 1 on the table.

Striped 4t! c From the table above, it can be concluded that this alloy has improved fatigue properties compared to a similar round plate alloy in the tearing temperature range.

As mentioned above, 1.This copper taiming machine is AA.
Contains 2 to 181 metals and Vo, 05 to 8 mm% as necessary steel, or K Fes Co, Ni, Si.

Sn%Ag, Goods, Mn) Sbs Ga) Ges I
The fall of the metal such as n or more than 1m may contain within the yoke where the alloy may have a β-phase structure, and l! 1! s is C-
It is a type of mold that has a fineness that improves its temperament, such as the Kaede effect of the brittleness of crystals and boundaries, and the refinement of crystal grains, and has a remarkable board effect on workability. prayed for,
In addition, the fatigue properties are improved with care, so it is used industrially and has a large number of young fruits.

Patent applicant Sumitomo Electric Industries Co., Ltd. Agent Patent attorney Kazu1) Akira

Claims (1)

[Claims] (υ At 8-18 double lid-1V0.05-8mm'1
9II', and the remainder is Cu, a th-h image. (2) At2~18mEIS, VQ, 05~Bkf
kSk and Fe%Co%Ni, Si, Sn%Ag, average, Mn, Sb. Gi, Ge%In metal [Ip] Reka1ya1
Next, the alloy contains more than 100% of β @ i, and the balance is Cu.