Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1992-08-14
1993-11-23
Walsh, Donald P.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
419 66, 419 67, 148549, 148550, 148438, 148440, 420551, 420552, 428548, B22F 302, C22C 2100
Patent
active
052640213
ABSTRACT:
A compacted and consolidated aluminum-based alloy material is obtained by compacting and consolidating a rapidly-solidified material having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c M.sub.d or Al.sub.a' Ni.sub.b X.sub.c M.sub.d Q.sub.e, where X is one or two elements selected from La and Ce or an Mm; M is Zr or Ti; Q is one or more elements selected from Mg, Si, Cu and Zn, and a, a', b, c, d and e are, in atomic percentages, 84.ltoreq.a.ltoreq.94.8, 82.ltoreq.a'.ltoreq.94.6, 5.ltoreq.b .ltoreq.10, 0.1.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.3, and 0.2.ltoreq.e.ltoreq.2. According to the production process of the invention, powder or flakes obtained by rapidly solidifying are compacted, followed by compressing, forming and consolidating by conventional plastic working operations. The consolidated material has an elongation sufficient to withstand secondary working operations. Moreover, the material retains the excellent properties of its raw material as they are.
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Kawanishi Makoto
Kita Kazuhiko
Nagahama Hidenobu
Mai Ngoclan T.
Walsh Donald P.
Yoshida Kogyo K.K.
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