High strength and high rigidity aluminum-based alloy

Details High strength and high rigidity aluminum-based alloy High strength and high rigidity aluminum-based alloy

1996-02-15

2000-01-25

Ryan, Patrick

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148403, 148437, 148438, 420550, 420529, 420538, C22C 2100

Patent

active

06017403&

ABSTRACT:
An aluminum-based alloy having the general formula Al.sub.x L.sub.y M.sub.z (wherein L is Mn or Cr; M is Ni, Co, and/or Cu; and x, y, and z, representing a composition ratio in atomic percentages, satisfy the relationships x+y+z=100, 75.ltoreq.x.ltoreq.95, 2.ltoreq.y.ltoreq.15, and 0.5.ltoreq.z.ltoreq.10) having a metallographic structure comprising a quasi-crystalline phase possesses high strength and high rigidity. In order to enhance the ductility and toughness of the aluminum-based alloy, the atomic percentage of M may be further limited to 0.5.ltoreq.z.ltoreq.4, and more preferably to 0.5.ltoreq.z.ltoreq.3. The aluminum-based alloy is useful as a structural material for aircraft, vehicles and ships, and for engine parts; as material for sashes, roofing materials, and exterior materials for use in construction; or as materials for use in marine equipment, nuclear reactors, and the like.

REFERENCES:
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patent: 5424127 (1995-06-01), Dubois et al.
patent: 5472920 (1995-12-01), Dubois et al.
patent: 5472929 (1995-12-01), Dubois et al.
patent: 5593515 (1997-01-01), Masumoto et al.

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