Corrosion Behavior of stainless steels and nickel-based alloys in acetic acid solutions containing bromide ions

IMR OpenIR

	Corrosion Behavior of stainless steels and nickel-based alloys in acetic acid solutions containing bromide ions
	G. Q. Liu; Z. Y. Zhu; W. Ke; E. H. Han; C. L. Zeng
	2001
发表期刊	Corrosion
ISSN	0010-9312
卷号	57 期号:8 页码:730-738
摘要	The immersion test method, potentiodynamic cyclic anodic polarization, scanning electron microscopy (SEM), and x-ray photoelectron spectroscopy (XPS) techniques were used to study corrosion behavior of stainless steels (SS) and nickelbased alloys in acetic acid (CH3COOH: HAc) solutions containing bromide ions. In 50% HAc solution containing 0.29 M Br- at 80degreesC, materials suffered serious general corrosion. The corrosion rate of UNS N02200 reached 2.94 mm/y, and UNS S31304 SS had a rate of 2.05 mm/y. Under this condition, UNS S31803 duplex SS experienced very serious pitting. Anodic polarization test results showed that UNS N10276 had excellent pitting resistance, but UNS N02200 SS and UNS S31304 SS easily suffered pitting attack. The alloying element nickel did not resist corrosion by itself, but with the presence of chromium and molybdenum it had good corrosion resistance. The elements in the surface film were analyzed by XPS. It was found that chromium and molybdenum could form the protective films of chromic oxide (Cr2O3) and molybdenum dioxide (MoO2) protecting materials from the attack of aggressive ions. Pit morphologies were Inspected by SEM after anodic polarization treatment and were consistent with the electrochemical test results.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;liu, gq (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china
关键词	Acetic Acid Immersion Testing Potentiodynamic Cyclic Anodic Polarization Scanning Electron Microscopy Stainless Steel X-ray Photoelectron Spectroscopy Ray Photoelectron-spectroscopy Pitting Corrosion Molybdenum Temperatures Potentials Film
URL	查看原文
WOS记录号	WOS:000176357300009
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36714
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Q. Liu,Z. Y. Zhu,W. Ke,et al. Corrosion Behavior of stainless steels and nickel-based alloys in acetic acid solutions containing bromide ions[J]. Corrosion,2001,57(8):730-738.
APA	G. Q. Liu,Z. Y. Zhu,W. Ke,E. H. Han,&C. L. Zeng.(2001).Corrosion Behavior of stainless steels and nickel-based alloys in acetic acid solutions containing bromide ions.Corrosion,57(8),730-738.
MLA	G. Q. Liu,et al."Corrosion Behavior of stainless steels and nickel-based alloys in acetic acid solutions containing bromide ions".Corrosion 57.8(2001):730-738.