Title :
Study on Properties of M50 Steel Implanted With Nitrogen by Plasma-Based Ion Implantation at Elevated Temperatures
Author :
Ma, Xinxin ; Xu, Shuyan ; Tang, Guangze
Author_Institution :
Sch. of Material Sci. & Eng., Harbin Inst. of Technol.
Abstract :
M50 steel was implanted with nitrogen at elevated temperatures ranging from 260 degC to 420 degC using plasma-based ion implantation. The effect of implantation temperature on surface microstructure, hardness, and wear resistance was investigated. It is observed that nitrogen penetrates very deeply from the surface as a result of implantation and thermal diffusion at elevated temperatures. The amount of nitrides and their distribution depth as well as the hardness and the wear resistance in the surface layer increase with the processing temperature. As the implantation temperature increases, the wear mechanism changes from adhesive wear to abrasive wear
Keywords :
abrasion; crystal microstructure; hardness; impurity distribution; ion implantation; plasma materials processing; steel; surface morphology; thermal diffusion; wear resistance; 260 to 420 degC; M50 steel; abrasive wear; adhesive wear; hardness; nitride distribution depth; nitrogen implantation; plasma-based ion implantation; surface microstructure; thermal diffusion; wear resistance; Abrasives; Ion implantation; Microstructure; Nitrogen; Plasma immersion ion implantation; Plasma properties; Plasma temperature; Steel; Surface resistance; Temperature distribution; Elevated temperature ion implantation; plasmabased ion implantation (PBII); structure; wear;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2006.876483
