| 摘要 |
An alloy is disclosed having excellent corrosion resistance and abrasion resistance, comprising a matrix metal phase comprised of at least one member selected from an Fe-base alloy, a Co-base alloy and a Ni-base alloy and, present in the matrix metal phase, 10 to 65%, in terms of the area, of a substantially homogeneously crystallized and/or precipitated VC particle phase having a particle diameter of 5 mu m or less. The alloy can be used to provide a surface-modified metallic member wherein the alloy is integrally coated on the surface of the metallic member at its desired portion. The alloy may be produced by melting a powder mixture or VC-powder-containing wire comprising a matrix metal comprised of at least one member selected from an Fe-base alloy, a Co-base alloy and a Ni-base alloy and a VC powder having a particle diameter of 10 mu m or less with a heat source having a high energy density and then cooling the resultant melt to homogeneously crystallize and/or precipitate VC having a particle diameter of 5 mu m or less in the matrix metal phase. The alloy may be produced from a material comprising a cored wire comprised of a pipe of a matrix metal comprising at least one member selected from an Fe-base alloy, a Co-base alloy and a Ni-base alloy and, filled into the pipe, a VC powder having a particle diameter of 10 mu m or less. In another embodiment the alloy may be produced from a material comprising a powder mixture comprised of a matrix metal comprising at least one member selected from an Fe-base alloy, a Co-base alloy and a Ni-base alloy and a VC powder having a particle diameter of 10 mu m or less. <IMAGE> |
