Patent ID: 6302937
Filing Date: 2001-10-16
Classification: B22F,C22C

Abstract:
A sintered alloy having superior wear resistance, having an overall composition consisting of, in percent by weight,Ni in an amount of 6.0 to 25.0%,Cr in an amount of 0.6 to 8.75%,C in an amount of 0.54 to 2.24%, andbalance consisting of Fe and inevitable impurity,said sintered alloy exhibiting a metallographic structure in which the following hard phase is dispersed in a mixed structure of martensite and austenite:said hard phase comprising, a core consisting of Cr carbide; and a ferrite phase diffused Cr, or a mixed phase of ferrite and austenite diffused Cr, surrounding said core, andan area ratio of austenite in said mixed structure in said metallographic structure ranging from 5 to 30%.