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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 大连理工大学宁波研究院
性别：男
毕业院校：清华大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程
办公地点：辽宁省凝固控制与数字化制备技术重点实验室/大连理工大学铸造中心401
联系方式：0411-84709500
电子邮箱：eyguo@dlut.edu.cn
Electrochemical corrosion mechanisms of nickel-aluminium bronze with different nickel contents using the rotating disc electrode
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论文类型：期刊论文
发表时间：2019-08-15
发表刊物：CORROSION SCIENCE
收录刊物：SCIE、EI
卷号：157
页面范围：438-449
ISSN号：0010-938X
关键字：Alloy; Polarization; SEM; Kinetic parameters
摘要：The open circuit potential, cathodic and anodic polarisation characteristics of nickel-aluminium bronze (NAB) with different nickel contents in 3.5 wt.% NaCl solution were investigated under well-defined hydrodynamic conditions. The results showed that irreversible cathodic oxygen reduction reaction was under kinetic control, whereas the reversible anodic copper dissolution reaction was under mixed transport-kinetic control. The increase in Ni content decreased the total amounts of alpha phase and beta' phase in the microstructures of NAB alloys, resulting in the decrease in both cathodic kinetic current and anodic current, and thus improved the corrosion resistance of NAB alloys under flowing conditions.