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Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area
Qu Shaopeng; Cheng Baizhang; Dong Lihua; Yin Yansheng; Yang Lijing
2018
发表期刊ACTA METALLURGICA SINICA
卷号54期号:8页码:1094-1104
摘要Deep-sea hydrothermal area has a lot of mineral resources, and study the corrosion behavior of metal in deep-sea hydrothermal area is useful for marine resource development. Electrochemical impedance spectroscopy, linear polarization, potentiodynamic polarization and Mott-Schottky analysis were used to study the electrochemical properties of 2205 steel in 20 MPa hydrostatic pressure 3.5% NaCl solution with different temperatures. Corrosion morphologies and corrosion products of 2205 steel after electrochemical tests were analyzed by SEM, EDS and white light interferometry. The results show that 2205 steel has good pitting resistance under 25 degrees C in simulated hydrothermal area, pit occurred on the surface of 2205 steel after the solution temperature reaching 65 degrees C crack-shaped pit occurred on the surface of 2205 steel under 150 and 200 degrees C Pit occurs in austenite phase at 65 degrees C and occurs in ferrite phase at 100 similar to 200 degrees C Impedance and linear polarization resistance of 2205 steel first decrease and then increase with temperature increasing in simulated hydrothermal area, and impedance and linear polarization resistance under 150 degrees C are lowest. Pitting potential of 2205 steel first negative shift and then positive shift, and carrier density of passive film formed in simulated hydrothermal area increase with temperature increasing.
关键词Pitting Corrosion Stainless-steel Passive Film Hot Springs
学科领域Chemistry ; Materials Science ; Physics
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17263
专题2018专题
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GB/T 7714
Qu Shaopeng,Cheng Baizhang,Dong Lihua,et al. Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area[J]. ACTA METALLURGICA SINICA,2018,54(8):1094-1104.
APA Qu Shaopeng,Cheng Baizhang,Dong Lihua,Yin Yansheng,&Yang Lijing.(2018).Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area.ACTA METALLURGICA SINICA,54(8),1094-1104.
MLA Qu Shaopeng,et al."Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area".ACTA METALLURGICA SINICA 54.8(2018):1094-1104.
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