High strength, heat resistant aluminum alloys and method of preparing wrought article therefrom
US5053084A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 30, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Apr 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/902
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides high-strength, heat resistant aluminum alloys having a composition represented by the general formula: EQU Al.sub.a M.sub.b X.sub.d or Al.sub.a M.sub.b Q.sub.c X.sub.e (wherein M is at least one metal element selected from the group consisting of Cu, Ni, Co and Fe; Q is at least one metal element selected from the group consisting Mn, Cr, Mo, W, V, Ti and Zr; X is at least one metal element selected from the group consisting of Nb, Ta, Hf and Y; and a, b, c, d and e are atomic percentages falling within the following ranges: 45.ltoreq.a.ltoreq.90, 5.ltoreq.b.ltoreq.40, 0<c.ltoreq.12, 0.5.ltoreq.d.ltoreq.15 and 0.5.ltoreq.e.ltoreq.10, the aluminum alloy containing at least 50% by volume of amorphous phase. The aluminum alloys are especially useful as high strength, high heat resistant materials in various applications and since they exhibit a superplasticity in the vicinity of their crystallization temperature, they provide high-strength and heat resistant wrought materials by extrusion, pressing or hot-forging at the temperatures within the range of the crystallization temperature.+-.100.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.