Enhancement of wear resistance by sand blasting-assisted rapid plasma nitriding for 304 austenitic stainless steel

被引：18
作者：
Li, Dong [1 ,4 ]
Wu, Jiqiang [2 ]
Miao, Bin [1 ,3 ]
Zhao, Xiaobing [1 ,4 ]
Mao, Changjun [1 ,5 ]
Wei, Wei [1 ,5 ]
Hu, Jing [1 ,4 ,5 ]
机构：
[1] Changzhou Univ, Jiangsu Key Lab Mat Sci & Technol, Changzhou, Peoples R China
[2] Kingdream Publ Ltd Co, Sinopec Oilfield Equipment Corp, Wuhan, Hubei, Peoples R China
[3] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin, Heilongjiang, Peoples R China
[4] Changzhou Univ, Huaide Coll, Changzhou 213164, Peoples R China
[5] Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolat Sci & E, Changzhou 213164, Peoples R China
来源：
SURFACE ENGINEERING | 2020年 / 36卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Sand blasting; plasma nitriding; 304 austenitic stainless steel; wear resistance; microstructure; surface morphology; friction coefficient; mechanism; MECHANICAL ATTRITION TREATMENT; PREOXIDATION;
D O I：
10.1080/02670844.2019.1641953
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, a pretreatment of sand blasting (SB) was carried out prior to plasma nitriding to enhance the nitriding efficiency and improve the wear resistance for 304 austenitic stainless steel. The surface morphology, microstructure, phase constituents and wear resistance were systematically investigated by means of scanning electron microscopy, optical microscopy, Vickers hardness tester, X-ray diffraction and pin-on-disk tribotester, etc. The results showed that SB had significant enhancement effect on nitriding efficiency and wear resistance. Meanwhile, the enhancement effect is duration dependent; the optimal wear resistance is obtained at SB duration of 15 min, which is mainly ascribed to the excellent protection from the thicker and denser compound layer.
引用
收藏
页码：524 / 530
页数：7
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