ばねの窒化シミュレーションに及ぼすばね材料成分・アンモニア濃度の影響

抄録

This subject focuses on the simulated nitriding analysis of the compound layer depth, diffusion zone depth and Vickers hardness distribution on springs. The authors studied the effect of material element for nitriding by multiple linear regression analysis and found the relationship between nitrogen concentration and Vickers hardness. There have been no report that describes an analysis of the simulated hardness distribution on spring material. In this paper, nitriding temperature, nitriding time and ammonia concentration are considered. The authors further studied the way to deepen nitrogen diffusion zone while making the compound layer as shallow as possible.