JP4783934B2 - 金属ガラス締結ねじ - Google Patents
金属ガラス締結ねじ Download PDFInfo
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- JP4783934B2 JP4783934B2 JP2010065872A JP2010065872A JP4783934B2 JP 4783934 B2 JP4783934 B2 JP 4783934B2 JP 2010065872 A JP2010065872 A JP 2010065872A JP 2010065872 A JP2010065872 A JP 2010065872A JP 4783934 B2 JP4783934 B2 JP 4783934B2
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- stress
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- 239000002184 metal Substances 0.000 title claims description 81
- 229910052751 metal Inorganic materials 0.000 title claims description 81
- 239000011521 glass Substances 0.000 title claims description 72
- 238000005096 rolling process Methods 0.000 claims description 89
- 239000005300 metallic glass Substances 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 43
- 230000009477 glass transition Effects 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 21
- 238000005266 casting Methods 0.000 description 17
- 239000000047 product Substances 0.000 description 15
- 238000004458 analytical method Methods 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 9
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 206010017076 Fracture Diseases 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 238000007373 indentation Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000005482 strain hardening Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001040 Beta-titanium Inorganic materials 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000003562 lightweight material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
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- 238000002425 crystallisation Methods 0.000 description 1
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- 239000010419 fine particle Substances 0.000 description 1
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- 230000012447 hatching Effects 0.000 description 1
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- 239000000314 lubricant Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/022—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/003—Amorphous alloys with one or more of the noble metals as major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/005—Amorphous alloys with Mg as the major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/10—Amorphous alloys with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium or Hf as the major constituent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/006—Non-metallic fasteners using screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Inorganic Chemistry (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transmission Devices (AREA)
- Forging (AREA)
- Glass Compositions (AREA)
Description
非晶質からなるバルク金属ガラスを小型の機械部品などに応用するために、その凝固収縮が小さいという特徴を生かした鋳造法において、回転遠心力等を利用して充填性を向上させるための様々な工具、装置、方法などが提案されている。(例えば、特許文献2参照)
バルク金属ガラスを表面にもつ円筒状の素材の表面を、そのバルク金属ガラスが粘性流動を生じるガラス転移温度(Tg)以上に加熱した後、粘性流動性を利用して凹凸を有するダイスに押し当てて成形する方法が提案されている。(例えば、特許文献3,4参照)
また、製品の表面に金属ガラスを溶射することにより、内部は従来の素材の特徴を残したまま、表面にバルク金属ガラスの特徴をもたせる提案がなされている。(例えば、特許文献5,6参照)
本発明は、これを効果的に利用して、締結の際に、ねじにかかる引張り力(軸力)によりねじ溝の底の領域で生じる引張り応力の応力集中を緩和させるために、転造加工により塑性ひずみが導入される領域のねじ溝の底からの深さをdとし、 ねじ外径をDとしたとき、d>0.022×Dの関係にあることを特徴とする金属ガラス締結ねじである。
とほぼ見積もることができる。尚、このKcは、き裂が発生する部分の形状と、弾性限応力σlにより以下のように求めることができる。すなわち、ねじの溝部をき裂とみなして、等間隔に円環き裂を有する無限の丸棒と仮定すると、臨界応力拡大係数Kcは、図5(b)のねじ外径Dを用いて、式(2)のようになる。(参考文献として、宇佐美:機械設計,51巻,15号(2007年)および、西谷ら:日本機械学会論文集(A編),50巻453号(1984年))尚、論文の中の係数に安全を見て、0.30とするという考え方もあるが、ここでは、標準値である0.26を(2)式の係数にもちいている。
ここで、式(2)を式(1)に代入すると
r=0.022×D ・・・(3)
となる。このねじ溝の引張り塑性変形領域13の深さrの位置が、転造加工により塑性ひずみが導入されすべり帯が蓄積している領域に含まれ、延性が向上していることが必要となる。すなわち、転造加工により塑性ひずみが導入された領域の深さをdとするとき、dがrより大きい必要がある。すなわち、
d>r ・・・(4)
すなわち、式(3)と式(4)より、
d>0.022×D ・・・(5)
でなければならない。安定した効果を得るためには、ばらつき等を考慮して、転造加工により塑性ひずみが導入されてすべり帯を含む領域12の深さdは、この最低値の1.5倍以上であることが望ましい。
て、これを中間形状とし、その後、転造加工を行ってねじに仕上げた場合は、転造加工に
より塑性ひずみが導入される領域の大きさが不十分となり、前記式(4)の条件を満足し
ない場合がある。このときは、転造を行っても、応力集中の緩和の効果が十分に得られな
い。
2 削り出しによるねじ中間形状品
3 鋳造用素材
4 鋳造によるねじの中間形状品
41 ねじ頭部
42 ねじ軸部
5 転造加工初期
6 転造加工中期
7 転造加工を完了したねじ
71 転造加工されたねじの軸部
8 相当応力が1800MPa以上の領域
9 三角ねじのねじ山
10 角ねじのねじ山
11 台形ねじのねじ山
12 すべり帯を含む領域
13 引張り塑性変形領域
14 転造加工で成形されたねじ山
15 すべり帯
P1 転造ダイス移動側
P2 転造ダイス固定側
Q1 平均応力が0MPaの輪郭線
Q2 相当応力が1800MPaの輪郭線
Q3 ねじ山角度
R1 引張り方向
_
Claims (6)
- ねじのねじ山及びねじ溝の加工において、非晶質からなるバルク金属ガラスを、被加工材であるバルク金属ガラスのガラス転移温度以下で、転造加工により成形することを特徴とする金属ガラス締結ねじ。
- 転造加工により塑性ひずみが導入される領域のねじ溝の底からの深さをdとし、 ねじ外径をDとしたとき、d>0.022×Dの関係にあることを特徴とする請求項1に記載の金属ガラス締結ねじ。
- ねじ山角が40〜70度の範囲にある三角ねじであることを特徴とする請求項1または請求項2に記載の金属ガラス締結ねじ。
- 前記バルク金属ガラスは、Ti基,Pd基、又はZr基のうち少なくとも一つを含むことにより、生体用に使用されることを特徴とする請求項1に記載の金属ガラス締結ねじ。
- 前記バルク金属ガラスは、降伏点が低く、弾性率の低い被締結材を締結する場合は、締結時に、被締結材の永久ひずみ(陥没)によるゆるみを防止するために、被締結材と同等もしくは低い弾性率を有するMg基、Pt基、Ti基,Zr基の何れかを含むことを特徴とする請求項1又は請求項4に記載の金属ガラス締結ねじ。
- 前記バルク金属ガラスの塑性変形を生じる領域の平均応力が圧縮応力であるか、又は前記バルク金属ガラスの引張り破断強度の3分の1以下の引張り応力で、転造加工により成形される請求項1、請求項4、又は請求項5の何れかに記載の金属ガラス締結ねじの製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010065872A JP4783934B2 (ja) | 2009-06-10 | 2010-03-23 | 金属ガラス締結ねじ |
CN201080062161.3A CN102844130B (zh) | 2010-01-22 | 2010-06-22 | 金属玻璃紧固螺丝及其制造方法 |
US13/574,498 US9095890B2 (en) | 2010-01-22 | 2010-06-22 | Metallic glass fastening screw |
KR1020127018104A KR101718179B1 (ko) | 2010-01-22 | 2010-06-22 | 금속유리 체결 나사 |
EP10843906.8A EP2527059B1 (en) | 2010-01-22 | 2010-06-22 | Metallic glass fastening screw and its method of manufacturing |
PCT/JP2010/060540 WO2011089742A1 (ja) | 2010-01-22 | 2010-06-22 | 金属ガラス締結ねじ |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009138985 | 2009-06-10 | ||
JP2009138985 | 2009-06-10 | ||
JP2010011544 | 2010-01-22 | ||
JP2010011544 | 2010-01-22 | ||
JP2010065872A JP4783934B2 (ja) | 2009-06-10 | 2010-03-23 | 金属ガラス締結ねじ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011169458A JP2011169458A (ja) | 2011-09-01 |
JP4783934B2 true JP4783934B2 (ja) | 2011-09-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2010065872A Expired - Fee Related JP4783934B2 (ja) | 2009-06-10 | 2010-03-23 | 金属ガラス締結ねじ |
Country Status (6)
Country | Link |
---|---|
US (1) | US9095890B2 (ja) |
EP (1) | EP2527059B1 (ja) |
JP (1) | JP4783934B2 (ja) |
KR (1) | KR101718179B1 (ja) |
CN (1) | CN102844130B (ja) |
WO (1) | WO2011089742A1 (ja) |
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JP5334769B2 (ja) * | 2009-09-10 | 2013-11-06 | 独立行政法人物質・材料研究機構 | 高強度ボルト |
CN104641010B (zh) * | 2012-03-23 | 2018-05-22 | 苹果公司 | 给料或组成部分的无定形合金辊轧成形 |
CN104320989B (zh) | 2012-03-23 | 2017-06-06 | 科卢斯博知识产权有限公司 | 块体无定形合金紧固件 |
JP6431040B2 (ja) | 2013-03-21 | 2018-11-28 | イリノイ トゥール ワークス インコーポレイティド | 往復ダイスを備えるロール成形機 |
GB2518849A (en) * | 2013-10-01 | 2015-04-08 | Nobel Biocare Services Ag | Dental Kit-of-parts and Method of assembling the same |
WO2016033312A1 (en) * | 2014-08-27 | 2016-03-03 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Magnesium enhanced/induced bone formation |
MX365971B (es) * | 2015-04-29 | 2019-06-21 | Colgate Palmolive Co | Composiciones para el cuidado bucal. |
US9839955B2 (en) * | 2015-05-15 | 2017-12-12 | Northrop Grumman Systems Corporation | Amorphous metal permanent fastener utilizing a thermoplastically swaged retainer |
CN117338605A (zh) | 2015-11-13 | 2024-01-05 | 宝洁公司 | 具有双氟化物源与改善的氟化物摄取的洁齿剂组合物 |
WO2017079957A1 (en) | 2015-11-13 | 2017-05-18 | The Procter & Gamble Company | Dentifrice compositions with improved fluoride uptake |
BR112018007793B1 (pt) | 2015-11-13 | 2021-06-22 | The Procter & Gamble Company | Composições dentifrícias com estabilidade melhorada de fluoreto |
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CN105598652B (zh) * | 2016-03-18 | 2018-01-19 | 中国科学院力学研究所 | 一种使韧性金属玻璃产生宏观拉伸塑性的方法 |
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EP2527059A1 (en) | 2012-11-28 |
US9095890B2 (en) | 2015-08-04 |
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WO2011089742A1 (ja) | 2011-07-28 |
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