The microstructure and properties of commercial pure iron modified by plasma nitriding
This paper was concerned with commercial pure iron plasma nitride at different bias voltages by high frequency and low voltage plasma nitriding. The results showed that the microstructure of the nitride layers was strongly influenced by the bias voltages. Compared with -1.5 kV and -2.5 kV, the pure iron plasma nitriding at -3.5 kV has the best wear resistance and corrosion resistance and its microhardness was three times than that of the virgin pure iron. The increase of bias voltage would promote the formation of the nitride layers. The nitride layer which is composed of epsiv-Fe(2-3)N iron nitride and gamma-Fe4N iron nitride was a key factor in the properties enhancement of the commercial pure iron, which was modified by high frequency and low voltage plasma nitriding.
High frequency and low voltage plasma immersion and ion implantation (HLPⅢ) Iron nitride Microstructure Microhardness Wear resistance Corrosion resistance
Chang-Zi Chen Xing-Hua Shi Peng-Cheng Zhang Bin Bai Yong-Xiang Leng Nan Huang
Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong Univ State Key Laboratory of Physical Chemistry of Surface, Jiangyou, Sichuan 621700, China Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong Univ
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
971-974
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）