Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
419 16, 419 54, 419 57, 419 60, G22F 700
There are disclosed a surface sintered alloy with a burnt surface, comprising 75 to 95% by weight of a hard phase containing Ti, C and N as the essential components and otherwise comprising at least one of Zr, Hf, V, Nb, Ta, Cr, Mo and W and the balance of the alloy comprising a binder phase composed mainly of Co and/or Ni and inevitable impurities, wherein the sintered alloy satisfies at least one condition selected from the group consisting of the following (1) to (3):
patent: 4830930 (1989-05-01), Taniguchi et al.
Lechert Jr. Stephen J.
Toshiba Tungaloy Co., Ltd.
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