Investigation of anodic plasma electrolytic carbonitriding on medium carbon steel

被引：19

作者：

Wu, Jie ^{[1
]}

Wang, Kai ^{[2
]}

Fan, Longlong ^{[1
]}

Dong, Lei ^{[1
]}

Deng, Jianhua ^{[1
]}

Li, Dejun ^{[1
]}

Xue, Wenbin ^{[3
]}

机构：

[1] Tianjin Normal Univ, Coll Phys & Mat Sci, Tianjin 300387, Peoples R China

[2] China Univ Petr, Sch Petr Engn, Qingdao 266580, Peoples R China

[3] Being Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2017年 / 313卷

基金：

中国国家自然科学基金;

关键词：

Anodic plasma electrolytic carbonitriding; Carbon steel; Optical emission spectroscopy; Acoustical signal; Wear resistance; ALUMINUM; LAYER;

D O I：

10.1016/j.surfcoat.2017.01.109

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, anodic plasma electrolytic carbonitriding (APEC/N) treatment was employed to fabricate a hardened layer on medium carbon steel. The optical emission spectroscopy (OES) and the acoustical signal characterizations of plasma discharge during APEC/N process were analyzed for the first time. The results showed that the discharge plasma was in a local thermal equilibrium (LTE) state and the electron temperature in discharge zone was 4000 K-8000 K. The high electron temperature and strong acoustical signal corresponded with the intense discharge process, while the high-frequency noise up to 20 KHz related to the discharge taking place. Beneath the oxide layer, there was a 60 mu m thick carbonitrided layer, which contained Fe3C and Fe4N phases. After APEC/N treatment, the wear resistance of medium carbon steel was improved. The wear rate of treated steel was about 2.61 x 10(-4) mm(3)/N.m, which was only half of the bare steel substrate. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：288 / 293

页数：6

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