Methods for making bulk metallic glasses containing metalloids
US-9790580-B1 · Oct 17, 2017 · US
Co-based high-strength amorphous alloy and use thereof
US2018135151A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018135151-A1 |
| Application number | US-201715677212-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 15, 2017 |
| Priority date | Nov 11, 2016 |
| Publication date | May 17, 2018 |
| Grant date | — |
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Abstract
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An amorphous alloy corresponding to the formula: Co a Ni b Mo c (C 1-x B X ) d X e wherein X is one or several elements selected from the group consisting of Cu, Si, Fe, P, Y, Er, Cr, Ga, Ta, Nb, V and W; wherein the indices a to e and x satisfy the following conditions: 55≤a≤75 at. % 0≤b≤15 at. % 7≤c≤17 at. % 15≤d≤23 at. % 0.1≤x≤0.9 at. % 0≤e≤10 at. %, each element selected from the group having a content ≤3 at. % and preferably ≤2 at. %, the balance being impurities.
First claim
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1 . An amorphous alloy corresponding to the formula: Co a Ni b Mo c (C 1-x B x ) d X e wherein X is one or several elements selected from the group consisting of Cu, Si, Fe, P, Y, Er, Cr, Ga, Ta, Nb, V and W; wherein the indices a to e and x satisfy the following conditions: 55≤a≤75 at. % 0≤b≤15 at. % 7≤c≤17 at. % 15≤d≤23 at. % 0.1≤x≤0.9 at. % 0≤e≤10 at. %, each element selected from the group having a content ≤3 at. % and preferably ≤2 at. %, the balance being impurities. 2 . The amorphous alloy according to claim 1 , wherein 60≤a≤70 at. %. 3 . The amorphous alloy according to claim 1 , wherein 0≤b≤10 at. %. 4 . The amorphous alloy according to claim 1 , wherein 10≤c≤15 at. %. 5 . The amorphous alloy according to claim 1 , wherein 17≤d≤21 at. %. 6 . The amorphous alloy according to claim 1 , wherein 0≤e≤5 at. % and preferably 0≤e≤3 at. %. 7 . The amorphous alloy according to claim 1 , wherein Cr content=0. 8 . The amorphous alloy according to claim 1 , wherein Fe content=0. 9 . The amorphous alloy according to claim 1 , wherein Cu content is ≤1 at. %. 10 . The amorphous alloy according to claim 1 , having a fracture strength under compressive loading above 3 750 MPa and preferably above 4000 MPa. 11 . The amorphous alloy according to claim 1 comprising α-Co precipitates. 12 . A ribbon, wire or foil made of the amorphous alloy according to claim 1 , having a thickness or diameter above 80 μm and preferably above 100 μm. 13 . The ribbon, wire or foil according to claim 12 , being ductile under 180° bend tests. 14 . A watch component, in particular spring, made of the amorphous alloy according to claim 1 . 15 . A watch comprising the watch component according to claim 14 .
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- What does patent US2018135151A1 cover?
- An amorphous alloy corresponding to the formula: Co a Ni b Mo c (C 1-x B X ) d X e wherein X is one or several elements selected from the group consisting of Cu, Si, Fe, P, Y, Er, Cr, Ga, Ta, Nb, V and W; wherein the indices a to e and x satisfy the following conditions: 55≤a≤75 at. % 0≤b≤15 at. % 7≤c≤17 at. % 15≤d≤23 at. % 0.1≤x≤0.9 at. % 0≤e≤10 at. %, each elem…
- Who is the assignee on this patent?
- Swatch Group Res & Dev Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C45/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 17 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).