粉末冶金工艺已广泛用于制造复杂形状的机械零件,氮化可改善这些零件的使用性能。苏联汽车工业工艺研究所,通过实验证实,氮化可大大提高粉冶材料的耐磨性。因氮化使其表面形成了5～7μm的氰化物。对于密度为90％的零件,表面硬度从150增至350HV_(0.5);密度为80％的材料则从125增 Powder metallurgy processes have been widely used to manufacture complex shapes of mechanical parts, and nitriding can improve the serviceability of these parts. Soviet Union Institute of Automotive Technology, confirmed by experiments, nitriding can greatly improve the wear resistance of powder metallurgy materials. Due to nitriding to form the surface of 5-7μm cyanide. For parts with a density of 90%, the surface hardness increased from 150 to 350 HV 0.5 (0.5) and the material with a density of 80% increased from 125