Open AccessEFFECT OF SALT BATH NITRIDING TIME ON THE PERFORMANCES OF 304 STAINLESS STEEL
Author(s) -
Liang Gao,
Changjun Mao,
Meihong Wu,
Wei Cai,
Mingyang Dai,
Jing Hu
Publication year - 2020
Publication title -
acta metallurgica slovaca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 13
eISSN - 1338-1156
pISSN - 1335-1532
DOI - 10.36547/ams.26.1.458
Subject(s) - nitriding , metallurgy , indentation hardness , materials science , microstructure , wear resistance , layer (electronics) , hardening (computing) , composite material
In this study, salt bath nitriding was carried out at 565℃ for various times for 304 stainless steel (304SS). The effect of salt bath nitriding time on the microstructure, micro-hardness and wear resistance was investigated systematically. The results showed a nitriding layer was formed during salt bath nitriding, and the thickness of effective hardening layer is duration dependant. The maximum microhardness value of 1200HV0.01 was obtained at optimal duration of 150min, which was five times higher than that of the untreated sample. And the wear resistance could be significantly improved by salt bath nitriding, the lowest weight loss after wear resistance was obtained while nitriding for 150min, which was one tenth of that of untreated sample.