The fatigue and wear resistance of the spheroidal graphite cast-iron crankshatt oi gas-nitrocarburizing and sulfnitrocarburizing in salt bath after normalizing are studied.

• 对比了球墨铸铁曲轴经正火加气体氮碳共渗及正火后盐浴硫氮碳共渗的抗疲劳性及耐磨性。