Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl

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	Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl
	C. Lin; X. G. Li; C. F. Dong
	2007
发表期刊	Journal of University of Science and Technology Beijing
ISSN	1005-8850
卷号	14 期号:6 页码:517-522
摘要	Accelerated corrosion test of stainless steel with weld was carried out to investigate the corrosion behavior under the wet-dry cyclic condition in the atmosphere containing Cl-. In the surface morphology, corrosion products were analyzed by metallographic observation, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the damage to stainless steel with weld in the atmosphere containing Cl- is due to localized corrosion, especially pitting and galvanic corrosion. Weld acts as the anode, whereas matrix acts as the cathode in the corrosion process. The pitting corrosion, including the nucleation and growth of a stable pit, is promoted by the presence of wet-dry cycles, especially during the drying stage. Pits centralizing in weld are found to be grouped together like colonies, with a number of smaller pits surrounding a larger pit. The composition of the corrosion products is Fe-2,O-3, CrO3, Fe3O4, NiCrO4, etc.
部门归属	nanchang hangkong univ, sch mat sci & technol, nanchang 330063, peoples r china. univ sci & technol beijing, corros & protect ctr, beijing 100083, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;lin, c (reprint author), nanchang hangkong univ, sch mat sci & technol, nanchang 330063, peoples r china;lincwi@sohu.com
关键词	Stainless Steel Weld Wet-dry Environment Chlorion Carbon-steel
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33676
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Lin,X. G. Li,C. F. Dong. Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl[J]. Journal of University of Science and Technology Beijing,2007,14(6):517-522.
APA	C. Lin,X. G. Li,&C. F. Dong.(2007).Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl.Journal of University of Science and Technology Beijing,14(6),517-522.
MLA	C. Lin,et al."Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containing Cl".Journal of University of Science and Technology Beijing 14.6(2007):517-522.