Investigation on Pitting Corrosion of Nickel-Free and Manganese-Alloyed High-Nitrogen Stainless Steels

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	Investigation on Pitting Corrosion of Nickel-Free and Manganese-Alloyed High-Nitrogen Stainless Steels
	X. Q. Wu; Y. Fu; J. B. Huang; E. H. Han; W. Ke; K. Yang; Z. H. Jiang
	2009
发表期刊	Journal of Materials Engineering and Performance
ISSN	1059-9495
卷号	18 期号:3 页码:287-298
摘要	Pitting corrosion behavior of three kinds of nickel-free and manganese-alloyed high-nitrogen (N) stainless steels (HNSSs) was investigated using electrochemical and immersion testing methods. Type 316L stainless steel (316L SS) was also included for comparison purpose. Both solution-annealed and sensitization-treated steels were examined. The solution-annealed HNSSs showed much better resistance to pitting corrosion than the 316L SS in both neutral and acidic sodium chloride solutions. The addition of molybdenum (Mo) had no further improvement on the pitting corrosion resistance of the solution-annealed HNSSs. The sensitization treatment resulted in significant degradation of the pitting corrosion resistance of the HNSSs, but not for the 316L SS. Typical large size of corrosion pits was observed on the surface of solution-annealed 316L SS, while small and dispersed corrosion pits on the surfaces of solution-annealed HNSSs. The sensitization-treated HNSSs suffered very severe pitting corrosion, accompanying the intergranular attack. The addition of Mo significantly improved the resistance of the sensitization-treated HNSSs to pitting corrosion, particularly in acidic solution. The good resistance of the solution-annealed HNSSs to pitting corrosion could be attributed to the passive film contributed by N, Cr, and Mo. The sensitization treatment degraded the passive film by decreasing anti-corrosion elements and Cr-bearing oxides in the passive film.
部门归属	[wu, xinqiang; fu, yao; huang, junbo; han, enhou; ke, wei; yang, ke] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [jiang, zhouhua] northeastern univ, sch met & mat, shenyang 110004, peoples r china.;wu, xq (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china, peoples r china;xqwu@imr.ac.cn
关键词	Corrosion Resistance High-nitrogen Stainless Steels Passive Film Pitting Corrosion Sensitization Treatment Austenitic Steels Anodic Behavior Passive Films Molybdenum Resistance Acid Impedance Xps Mo Cr
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WOS记录号	WOS:000263978000010
引用统计	被引频次：23[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/321006/32435
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Q. Wu,Y. Fu,J. B. Huang,et al. Investigation on Pitting Corrosion of Nickel-Free and Manganese-Alloyed High-Nitrogen Stainless Steels[J]. Journal of Materials Engineering and Performance,2009,18(3):287-298.
APA	X. Q. Wu.,Y. Fu.,J. B. Huang.,E. H. Han.,W. Ke.,...&Z. H. Jiang.(2009).Investigation on Pitting Corrosion of Nickel-Free and Manganese-Alloyed High-Nitrogen Stainless Steels.Journal of Materials Engineering and Performance,18(3),287-298.
MLA	X. Q. Wu,et al."Investigation on Pitting Corrosion of Nickel-Free and Manganese-Alloyed High-Nitrogen Stainless Steels".Journal of Materials Engineering and Performance 18.3(2009):287-298.