Comparison of corrosion behavior of 2205 and 2507 duplex stainless steel in simulated flue gas condensate of a waste incineration power plant

Xinjing Meng; Honghua Ge; Fang Ge

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Comparison of corrosion behavior of 2205 and 2507 duplex stainless steel in simulated flue gas condensate of a waste incineration power plant

机译：Comparison of corrosion behavior of 2205 and 2507 duplex stainless steel in simulated flue gas condensate of a waste incineration power plant

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The corrosion behavior of duplex stainless steel 2205 DSS and 2507 DSS in simulated flue gas condensate of a waste incineration power plant at 180 °C was compared by micro-area electrochemical testing, surface and weight loss analysis. The results showed that the corrosion resistance of the two stainless steels decreased with the increase of Cl~- concentration. After 48 h of corrosion, when the Cl~-concentration was not less than 6 g-L~(-1), active sites where current density increased suddenly appeared on the surface of 2205 DSS, accompanied by the obvious increase of surface roughness and the weight loss. The lowest Cl~-concentration that caused the appearance of active sites on the surface of 2507 DSS was 20 g-L~(-1) with less surface corrosion products and lower degree of general corrosion.

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来源
《Corrosion Reviews》 |2021年第5期|477-486|共10页
作者
Xinjing Meng; Honghua Ge; Fang Ge;
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作者单位

Shanghai Engineering Research Center of Energy-Saving in Heat Exchange Systems, Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China;

Shanghai Engineering Research Center of Energy- Saving in Heat Exchange Systems, Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China;

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原文格式 PDF
正文语种英语
中图分类金属腐蚀与保护、金属表面处理;
关键词
2205 DSS; 2507 DSS; chloride ion; micro-area electrochemical testing; pitting.;

Comparison of corrosion behavior of 2205 and 2507 duplex stainless steel in simulated flue gas condensate of a waste incineration power plant

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