Non-ferrous metal mechanical part

Details Non-ferrous metal mechanical part Non-ferrous metal mechanical part

1988-09-30

1990-03-13

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428469, 428702, 148264, B32B 900, C23F 726, C23C 112

Patent

active

049082612

ABSTRACT:
A non-ferrous metal mechanical part having a wear-resistant and smooth surface, and comprising a substrate of a metal selected from the group consisting of aluminum, aluminum alloy, nickel, and nickel alloy, and a surface layer formed on a surface of said substrate and containing chromium oxide (Cr.sub.2 O.sub.3) as a major constituent. The chromium oxide (Cr.sub.2 O.sub.3) is a substance which has been converted by heating a chromium compound, and an intermediate layer containing a reaction product between the substrate and chromium oxide in the surface layer is formed at an interface between the surface layer and the substrate.

REFERENCES:
patent: 3873344 (1975-03-01), Church et al.
patent: 4563397 (1986-01-01), Ishiguro et al.

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