Amorphous alloys having superior processability
US5032196A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 5, 1990 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Nov 5, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C45/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is an amorphous alloy having superior processability which has a composition represented by the general formula: EQU X.sub.a M.sub.b Al.sub.c wherein PA1 X is at least one element of Zr and Hf; PA1 M is at least one element selected from the group consisting of Ni, Cu, Fe, Co and Mn; and PA1 a, b and c are, in atomic percentages: 25.ltoreq.a.ltoreq.85, 5.ltoreq.b.ltoreq.70 and 0<c.ltoreq.35, preferably 35.ltoreq.a.ltoreq.75, 15.ltoreq.b.ltoreq.55 and 5.ltoreq.c .ltoreq.20 and more preferably 55.ltoreq.a.ltoreq.70, 15.ltoreq.b .ltoreq.35 and 5.ltoreq.c.ltoreq.20, the alloy being at least 50% (by volume) composed of an amorphous phase. Since the amorphous alloy is at least 50% by volume amorphous and can be present in a supercooled liquid state in a wide temperature range, it has a greatly superior processability together with high levels of strength, thermal resistance and corrosion resistance characteristic of amorphous alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.