Effect of dissolved hydrogen on corrosion of Inconel Alloy 600 in high temperature hydrogenated water

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	Effect of dissolved hydrogen on corrosion of Inconel Alloy 600 in high temperature hydrogenated water
	Q. J. Peng; J. Hou; K. Sakaguchi; Y. Takeda; T. Shoji
	2011
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	56 期号:24 页码:8375-8386
摘要	Electronic property, microstructure and chemical composition of oxide films formed on Alloy 600 in high temperature water with various dissolved hydrogen (DH) levels that allow the Ni/NiO phase transition to occur were studied by employing electrochemical and exposure experiments. The results showed that increasing DH in water decreased the thickness and the ionic defect transport resistance of the oxide film, in conjunction with the increase of Cr- but decrease of Ni-concentrations in the oxide film. Further, it was found that DH weakened the stability and protectability of the Ni spinet oxide film. The DH effect was attributed to the oxidative dissolution process of Ni following the reduction of Ni in the oxide by H(2), indicating the selective dissolution of Ni in the oxide plays an important role in the corrosion of Ni-base alloys in high temperature hydrogenated water. Implications of the results of this work for mechanism of stress corrosion cracking in Ni-base alloys in high temperature hydrogenated water were discussed. (C) 2011 Elsevier Ltd. All rights reserved.
部门归属	[peng, qunjia; hou, juan; sakaguchi, kazuhiko; takeda, yoichi; shoji, tetsuo] tohoku univ, grad sch engn, fracture & reliabil res inst, aoba ku, sendai, miyagi 9808579, japan. [peng, qunjia] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;shoji, t (reprint author), tohoku univ, grad sch engn, fracture & reliabil res inst, aoba ku, 6-6-01 aramaki aoba, sendai, miyagi 9808579, japan;tshoji@rift.mech.tohoku.ac.jp
关键词	Alloy 600 High Temperature Water Dissolved Hydrogen Corrosion Oxide Film Passive Films Oxide-films Pitting Susceptibility Conduction Mechanism Aqueous-solutions Sulfate-solutions Stainless-steels Cr Alloys Pure Iron Nickel
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WOS记录号	WOS:000295601600039
引用统计	被引频次：64[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/321006/30618
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. J. Peng,J. Hou,K. Sakaguchi,et al. Effect of dissolved hydrogen on corrosion of Inconel Alloy 600 in high temperature hydrogenated water[J]. Electrochimica Acta,2011,56(24):8375-8386.
APA	Q. J. Peng,J. Hou,K. Sakaguchi,Y. Takeda,&T. Shoji.(2011).Effect of dissolved hydrogen on corrosion of Inconel Alloy 600 in high temperature hydrogenated water.Electrochimica Acta,56(24),8375-8386.
MLA	Q. J. Peng,et al."Effect of dissolved hydrogen on corrosion of Inconel Alloy 600 in high temperature hydrogenated water".Electrochimica Acta 56.24(2011):8375-8386.

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