Production of sintered aluminum alloy articles from particulate

Details Production of sintered aluminum alloy articles from particulate Production of sintered aluminum alloy articles from particulate

1975-09-10

1977-04-05

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75170, 75171, 75176, 75228, B22F 300, C23C 104

Patent

active

040159477

ABSTRACT:
A method of making aluminum alloy parts having high wear resistance, comprising incorporating, in an aluminum premix powder, a minor proportion of particles of an additive alloy of cobalt or nickel containing a relative hard Laves phase intermetallic in a relatively soft matrix, and sintering the resultant mixture under conditions for effecting controlled diffusion of the additive alloy. The premix powder may be a mixture of a major proportion of aluminum with a minor proportion of one or more alloying elements; in particular, the premix may contain a minor proportion of magnesium. To achieve properly limited diffusion, the sintering step is performed at a temperature lower than that employed to sinter the premix powder when the additive alloy is not present.

REFERENCES:
patent: 3180012 (1965-04-01), Smith
patent: 3361560 (1968-01-01), Severns, Jr. et al.
patent: 3410732 (1968-11-01), Smith
patent: 3781170 (1973-12-01), Nakao et al.
patent: 3865586 (1975-02-01), Volin et al.

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