Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area

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	Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area
	Cheng Baizhang; Dong Lihua; Yin Yansheng; Yang Lijing; Qu Shaopeng
刊名	ACTA METALLURGICA SINICA
	2018
卷号	54 期号:8 页码:1094-1104
关键词	Pitting Corrosion Stainless-steel Passive Film Hot Springs
英文摘要	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.
学科主题	Chemistry ; Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17263]
专题	2018专题
推荐引用方式 GB/T 7714	Cheng Baizhang,Dong Lihua,Yin Yansheng,et al. Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area[J]. ACTA METALLURGICA SINICA,2018,54(8):1094-1104.
APA	Cheng Baizhang,Dong Lihua,Yin Yansheng,Yang Lijing,&Qu Shaopeng.(2018).Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area.ACTA METALLURGICA SINICA,54(8),1094-1104.
MLA	Cheng Baizhang,et al."Corrosion Behavior of 2205 Steel in Simulated Hydrothermal Area".ACTA METALLURGICA SINICA 54.8(2018):1094-1104.