The effect of electrochemical nitridation on the corrosion resistance of the passive films formed on the 2205 duplex stainless steel

被引：27
作者：
Lv Jinlong [1 ]
Jin, Huijin [2 ]
Liang Tongxiang [1 ]
机构：
[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Zhongguancun St, Beijing 100084, Peoples R China
[2] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 256卷
基金：
中国国家自然科学基金;
关键词：
Electrochemical nitridation; Nitridation; Corrosion; Passive film; Mott-Schottky; NITROGEN; BEHAVIOR; CARBON; 316L;
D O I：
10.1016/j.matlet.2019.126640
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of electrochemical nitridation on the corrosion resistance of the 2205 duplex stainless steel were investigated. It was found that increased nitrogen content in the 2205 duplex stainless steel affected donor and acceptor concentration distribution in the passive films on the surface of the 2205 duplex stainless steel. Moreover, the total donor and acceptor concentration in passive films decreased with the increasing of nitrogen content. The electrochemically nitridation facilitated to induce compact passive film and thus improved significantly the corrosion resistance of the 2205 duplex stainless steel in borate buffer solution. (C) 2019 Elsevier B.V. All rights reserved.
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