A novel duplex plasma treatment combining plasma nitrocarburizing and plasma nitriding

被引：28
作者：
Miao, Bin [1 ,3 ]
Chai, Yating [1 ,2 ]
Wei, Kunxia [1 ,3 ]
Hu, Jing [1 ,2 ]
机构：
[1] Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Peoples R China
[2] Auburn Univ, Mat Res & Educ Ctr, Auburn, AL 36849 USA
[3] Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Peoples R China
来源：
VACUUM | 2016年 / 133卷
关键词：
Surfaces; Plasma nitriding; Plasma nitrocarburizing; Microstructure; Diffusion; AISI; 1045; STEEL; MARTENSITIC STAINLESS-STEEL; LOW-CARBON STEEL; TEMPERATURE; MICROSTRUCTURE; CORROSION; BEHAVIOR; WEAR; PREOXIDATION; KINETICS;
D O I：
10.1016/j.vacuum.2016.07.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a novel duplex treatment (DT) combining plasma nitrocarburizing (PNC) and plasma nitriding (PN) was primarily developed for AISI 1045 steel. The modified samples were investigated by optical microscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), microhardness test, and pin-on-disk tribotest. The results showed that the nitriding efficiency was remarkably improved by DT, and the compound layer was much thicker than that treated by PNC or PN alone. Furthermore, higher cross-sectional microhardness and significant enhancement of wear resistance were achieved. The possible enhancement mechanism could be the phase transformation of gamma' to epsilon, and the reduced amount of cementite could be because of the activating and ionizing effect of the subsequent PN on cementite. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：54 / 57
页数：4
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