SINTER-HARDENING POWDER AND THEIR SINTERED COMPACTS

摘要

A sinter-hardening raw powder can yield a press-and-sinter compact with high hardness. The raw powder for sintering includes Fe as its primary component and also includes 0.3-0.8 wt % C, 5.0-12.0 wt % Ni, 1.0-5.0 wt % Cr, and 0.1-2.0 wt % Mo, wherein the mean particle size of the raw powder for sintering is between 50 and 100 μm. The sintered and tempered compact, without any quenching treatment, has high hardness.