Influence of temperature on the electrochemical and passivation behavior of 2507 super duplex stainless steel in simulated desulfurized flue gas condensates

被引：332
作者：
Cui, Zhongyu [1 ]
Wang, Liwei [2 ]
Ni, Hongtao [1 ]
Hao, Wenkui [3 ]
Man, Cheng [4 ]
Chen, Shuangshuai [1 ]
Wang, Xin [1 ]
Liu, Zhiyong [4 ]
Li, Xiaogang [4 ]
机构：
[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
[2] Qingdao Univ, Coll Electromech Engn, Qingdao 266071, Peoples R China
[3] Global Energy Interconnect Res Inst, Beijing 102209, Peoples R China
[4] Univ Sci & Technol Beijing, Ctr Corros & Protect, Beijing 100083, Peoples R China
来源：
CORROSION SCIENCE | 2017年 / 118卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
stainless steel; EIS; XPS; acid corrosion; passivity; CONSTANT-PHASE-ELEMENT; CALCIUM HYDROXIDE SOLUTION; 3.5-PERCENT NACL SOLUTION; OXIDE-FILM PROPERTIES; CR-NI ALLOY; CORROSION BEHAVIOR; CHEMICAL-COMPOSITION; PITTING CORROSION; PHOSPHORIC-ACID; PURE TITANIUM;
D O I：
10.1016/j.corsci.2017.01.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Influence of temperature on the electrochemical and passivation behavior of 2507 super duplex stainless steel in the simulated desulfurized flue gas condensates in thermal power plant chimney are investigated. Cathodic reactions are enhanced with temperature, accompanying with the involvement of oxygen reduction when the temperature is raised to 60 C-omicron or higher. The unchanged semiconductor type, enrichment of Cr and thickening of the passive film are observed as the temperature increases. The temperature induced variations of film structure and doping concentrations are responsible for the degradation of protective ability of the passive film. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：31 / 48
页数：18
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