High-strength, heat-resistant aluminum-based alloy, compacted and consolidated material thereof, and process for producing the same

A process for producing a compacted and consolidated microcrystalline aluminum-based alloy, the process comprising melting an alloy having a composition represented by the general formula Al.sub.bal Ti.sub.a M.sub.b, wherein M represents at least one element selected from among V, Cr, Mn, Cu, Zr, Mo and W;

• and a and b are, in percentages by weight, 7.ltoreq.a.ltoreq.20 and 0.2.ltoreq.b.ltoreq.20;
• rapidly solidifying the melt into powder or flakes;
• compacting the resultant powder or flakes;
• and subjecting the compacted powder or flakes to press forming and consolidating by a conventional plastic working, the compacted and consolidated alloy consisting of a matrix of aluminum or a supersaturated aluminum solid solution whose mean crystal grain size is 40 to 1,000 nm, and, homogeneously distributed in the matrix, particles made of a stable phase or a metastable phase of various intermetallic compounds formed from the matrix element and other alloying elements and/or of various intermetallic compounds formed from other alloying elements themselves, the intermetallic compounds having a mean particle size of 10 to 800 nm.