EFFECT OF NITROGEN HYDROGEN RATIO ON PLASMA NITRIDING FOR 38CrMoAl

被引：2
|
作者：
Song, Lu [1 ]
Peng, Tiantian [1 ]
Zhao, Xiaobin [1 ,2 ]
Hu, Jing [1 ,2 ]
机构：
[1] Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Peoples R China
[2] Changzhou Univ, Natl Expt Demonstrat Ctr Mat Sci & Engn, Changzhou 213164, Peoples R China
来源：
ACTA METALLURGICA SLOVACA | 2018年 / 24卷 / 03期
基金：
中国国家自然科学基金;
关键词：
38CrMoAl steel; plasma nitriding; XRD; compound layer;
D O I：
10.12776/ams.v24i3.1155
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Critical nitrogen hydrogen ratio in plasma nitriding was primarily investigated to get enhanced performance for 38CrMoAl steel. The modified surface layer was characterized by optical microscopy (OM), X-ray diffraction (XRD) and micro-hardness tester. The results showed that the critical nitrogen hydrogen ratio was 1: 5 while plasma nitriding at 540 degrees C for 6 h. Under this condition, no compound layer was formed, and accompanied with high surface hardness, while the compound layer was formed accompanied with lower surface hardness with nitrogen hydrogen ratio higher than the critical value.
引用
收藏
页码：229 / 233
页数：5
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