抄録
SKD steels are important materials for industry due to excellent characteristics such as high heat-resistant ability, excellent machinability, high wearable ability and high impact endurance. Ion Nitriding is widely used in industrial area, as a reliable, repeatable, economical and environmentally acceptable process. In this study, fatigue test had been performed to investigate the effect of Ion Nitriding on SKD steel. Six kinds of Ion Nitriding methods were used in this study. The fracture surface, the Ion Nitriding layer and the hardness distribution were also described in this paper. The result of this test showed the optimal Ion Nitriding method on improving the fatigue properties of this kind of material. Hardness of the specimens increased remarkably after Ion Nitriding process.
