High-strength aluminum-based alloy

Details High-strength aluminum-based alloy High-strength aluminum-based alloy

1997-07-09

2000-05-02

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

148437, 148438, C22C 2100

Patent

active

06056802&

ABSTRACT:
A high-strength aluminum-based alloy consisting essentially of a composition represented by the general formula: Al.sub.bal Mn.sub.a M.sub.b or Al.sub.bal Mn.sub.a M.sub.b TM.sub.c wherein M represents one or more members selected from the group consisting of Ni, Co, Fe and Cu, TM represents one or more members selected from the group consisting of Ti, V, Cr, Y, Zr, La, Ce and Mm and a, b and c each represent an atomic percent (at %) in the range of 2.ltoreq.a.ltoreq.5, 2.ltoreq.b.ltoreq.6 and 0<c.ltoreq.2 and containing monoclinic crystals of an intermetallic compound of an Al.sub.9 Co.sub.2 -type structure in the structure thereof. The Al-based alloy has excellent mechanical properties including a high hardness, high strength and high elongation.

REFERENCES:
patent: 5593515 (1997-01-01), Masumoto et al.
patent: 5858131 (1999-01-01), Inoue et al.
Hua, M., et al., "A New Phase Related to Quasicrystals in Rapidly Cooled Al-Mn-Fe Alloys," Materials Research Bulletin, vol. 23, No. 1, Jan. 1988, pp. 87-90.
Van Tendeloo, G., et al., "Quasicrystals and their crystalline homologues in the Al-Mn-Cu ternary alloys," Philosophical Magazine A, vol. 64, No. 2, Aug. 1991, UK, pp. 413-427.

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