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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：化学工程. 水科学与技术
办公地点：西部校区化工综合楼A503
联系方式：gchliu@dlut.edu.cn
电子邮箱：gchliu@dlut.edu.cn
Active deposition of bis (8-hydroxyquinoline) magnesium coating for enhanced corrosion resistance of AZ91D alloy
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论文类型：期刊论文
发表时间：2014-12-01
发表刊物：CORROSION SCIENCE
收录刊物：SCIE、EI
卷号：89
期号：C
页面范围：127-136
ISSN号：0010-938X
关键字：Alloy; SEM; XRD; Polarization; Passive films
摘要：The growth mechanism and electrochemical behavior of bis (8-hydroxyquinoline) magnesium (Mg(HQ)(2)) coating on AZ91D alloy were studied by SEM, XRD and electrochemical techniques. The results show that the corrosion of AZ91D alloy in 8-hydroxyquinolate anion solution induces active deposition of flower-like Mg(HQ)(2) coating on the alloy surface. The Mg(HQ)(2) coating provides a long-term barrier by its self-healing behavior, retarding the corrosion attack of aggressive species. Once the coating suffers from corrosion defect, the released Mg2+ ions and 8-hydroxyquinoline anions tend to recrystallize on the defect in the form of Mg(HQ)(2) deposits, thus effectively inhibits the further development of local corrosion. (C) 2014 Elsevier Ltd. All rights reserved.