[S3] S3 Materials DX for the research and development of structural materials for extreme environment(IV)

2:40 PM - 2:55 PM JST(5:40 AM - 5:55 AM UTC)

[S3.13] Surface compound layer and atomic diffusion in nitrided SCM420 low-alloy steel

○Hiroki Sato¹, Osamu Umezawa¹, Shinichi Takagi² (1. Yokohama National University, 2. Fuji WPC, Ltd.)

Keywords:

Steel,Nitriding,GD-OES,Surface analysis,Compound layer

Various nitrided SCM420 steel specimens were evaluated by glow discharge optical emission spectroscopy (GD-OES) to investigate surface microstructure formation and the diffusion behavior of carbon and nitrogen. In addition, the effects of long-term nitriding were also investigated.