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Corrosion Evolution of Low Alloy Steel in Deaerated Bicarbonate Solutions
Lu, Yunfei; Dong, Junhua; Ke, Wei; jhdong@imr.ac.cn
2015
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume31Issue:10Pages:1047-1058
AbstractCorrosion evolution during immersion tests (up to 43 days) of NiCu steel in deaerated 0.1 mol/L bicarbonate solutions was investigated by electrochemical measurements, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Results show that NiCu steel transformed from the anodic dissolution in the early stage of immersion to a metastable passive state in the final stage as the open-circuit potential value shifted positively, which was aroused by the precipitation of corrosion products. This process was mainly promoted by the trace amount of oxygen. Simultaneously, dominant cathodic reaction transformed from the hydrogen evolution in early stage to reduction processes of corrosion products in later stages. Possible corrosion processes were discussed with the assistance of a corresponding Pourbaix diagram. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
description.department[lu, yunfei ; dong, junhua ; ke, wei] chinese acad sci, inst met res, shenyang 110016, peoples r china
KeywordLow Alloy Steel Corrosion Behaviour Potential Corrosion Product Film Potentiodynamic Polarization Electrochemical Impedance Spectroscopy (Eis)
Funding OrganizationNational Natural Science Foundation of China [51471175]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74690
Collection中国科学院金属研究所
Corresponding Authorjhdong@imr.ac.cn
Recommended Citation
GB/T 7714
Lu, Yunfei,Dong, Junhua,Ke, Wei,et al. Corrosion Evolution of Low Alloy Steel in Deaerated Bicarbonate Solutions[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2015,31(10):1047-1058.
APA Lu, Yunfei,Dong, Junhua,Ke, Wei,&jhdong@imr.ac.cn.(2015).Corrosion Evolution of Low Alloy Steel in Deaerated Bicarbonate Solutions.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,31(10),1047-1058.
MLA Lu, Yunfei,et al."Corrosion Evolution of Low Alloy Steel in Deaerated Bicarbonate Solutions".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 31.10(2015):1047-1058.
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