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论文类型：期刊论文

发表时间：2016-09-01

发表刊物：CORROSION SCIENCE

收录刊物：SCIE、EI

卷号：110

页面范围：1-14

ISSN号：0010-938X

关键字：Steel; Galvanic corrosion; Multi-channel electrode technique; EN; Inhomogeneous elastic stress

摘要：In-situ corrosion characterization of Q235 steel under inhomogeneous elastic stress in 3.5% NaCl solution was investigated by zero resistance ammeter and electrochemical noise techniques combined, with a newly developed multi-channel working electrode and reference electrode system. The galvanic corrosion, resulted from the so-called stress cell with the higher stress locations as anodes relative to the low stress locations, could be induced by the applied inhomogeneous elastic stress. The distribution and intensity of anodic and cathodic areas in galvanic corrosion were shown to be a function of corrosion time. The effect of corrosion products on the corrosion behaviour was also discussed. (C) 2016 Elsevier Ltd. All rights reserved.