Corrosion-resistant aluminum-based alloys

Details Corrosion-resistant aluminum-based alloys Corrosion-resistant aluminum-based alloys

1989-03-16

1990-03-27

Dean, R.

Metal treatment

Stock

Amorphous, i.e., glassy

420538, C22C 2100

Patent

active

049117670

ABSTRACT:
The present invention provides high corrosion-resistant aluminum-based alloys having a composition represented by the general formula Al.sub.x M.sub.y (wherein: M is one metal element selected from the group consisting of Y, La, Ce, Nd and Sm; and x and y range from 75 to 98 atomic percent and from 2 to 25 atomic percent, respectively), the aluminum-based alloy containing at least 50% by volume of amorphous phase. The aluminum-based alloys are especially useful as high corrosion-resistant, high strength, high heat-resistant materials in various applications and, since they exhibit superplasticity in the vicinity of their crystallization temperature, they can be processed into various bulk materials, for example, by extrusion, press working or hot-forging at the temperatures within the range of the crystallization temperature .+-.100.degree. C.

REFERENCES:
patent: 4710246 (1987-12-01), Le Caer et al.

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