US 5,334,266 A · High strength, heat resistant aluminum-based alloys

Abstract

High strength, heat resistant aluminum-based alloys have a composition consisting of the following general formula Al.sub.a M.sub.b X.sub.d or Al.sub.a' M.sub.b Q.sub.c X.sub.d, wherein M is at least one metal element selected from the group consisting of Co, Ni, Cu, Zn and Ag; Q is at least one metal element selected from the group consisting of V, Cr, Mn and Fe; X is at least one metal element selected from the group consisting of Li, Mg, Si, Ca, Ti and Zr; and a, a', b, c and d are, in atomic percentages; 80.ltoreq.a.ltoreq.94.5, 80.ltoreq.a'.ltoreq.94, 5.ltoreq.b.ltoreq.15, 0.5.ltoreq.c.ltoreq.3 and 0.5.ltoreq.d.ltoreq.10. In the above specified alloys, aluminum intermetallic compounds are finely dispersed throughout an aluminum matrix and, thereby, the mechanical properties, especially strength and heat resistance, are considerably improved. The aluminum-based alloys of the present invention are very useful as light-weight, high-strength materials, namely, high specific strength materials, both at room temperature and elevated temperatures.

Claims14

Dependent claims

A high strength, heat resistant aluminum-based alloy having a composition containing aluminum intermetallic compounds obtained by rapid solidification, said composition consisting of the general formula:

Al.sub.a M.sub.b X.sub.d
wherein:
M is at least one metal element selected from the group consisting of Ni, Cu, Zn and Ag;
X is at least one metal element selected from the group consisting of Li, Mg, Ca and Zr;
and
a, b, and d are, in atomic percentages;
80.ltoreq.a.ltoreq.94.5, 5.ltoreq.b.ltoreq.15 and 0.5.ltoreq.d.ltoreq.10.

4 more elements

Dependencies are inferred from the claim text.

High strength, heat resistant aluminum-based alloys

Life of this patent

High strength, heat resistant aluminum-based alloys

Life of this patent

Abstract

Claims14