| abstract |
The present invention produces an iron-based sintered alloy in which hard particles based on titanium carbide powder are dispersed in an island shape in a matrix comprising a two-phase structure of austenite+martensite. By mixing titanium carbide powder, Cr powder, Mo powder, Co powder, and powder of any one of Al, Ti, or Nb to obtain titanium carbide, 3.0 to 12.0% by mass % containing 20% to 35% mixed powder of any one of Cr, 3.0% to 8.0% Mo, 8.0% to 23% Ni, 0.6% to 4.5% Co, and 0.6% to 1.0% Al, Ti or Nb, and then applied to the The mixed powder is subjected to cold isostatic pressing, vacuum sintering and solution treatment to obtain the iron-based sintered alloy. |