Alloy having excellent corrosion resistance and abrasion resista

Details Alloy having excellent corrosion resistance and abrasion resista Alloy having excellent corrosion resistance and abrasion resista

1994-09-28

1997-03-25

Jordan, Charles T.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 17, 419 23, 419 47, 419 49, B22F 3105, B22F 315

Patent

active

056154062

ABSTRACT:
A process for preparing an alloy having excellent corrosion resistance and abrasion resistance is provided. The alloy is prepared by providing a powder mixture or VC-powder-containing wire having a matrix metal, including a VC powder having a particle diameter of 10 .mu.m or less, and at least one member selected from the group consisting of an Fe-base alloy, a Co-base alloy and a Ni-base alloy. The powder mixture or VC-powder-containing wire is melted with a heat source having a high energy density. The resultant melt is then cooled to homogeneously crystallize and/or precipitate VC, such that the particle diameter of the VC is reduced to 5 .mu.m or less in the matrix metal phase. Also disclosed is a process for preparing a surface-modified metallic member from a metallic member and an alloy prepared from the aforementioned process.

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