郭恩宇

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

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Corrosion behavior of as-cast Mg-5Sn based alloys with In additions in 3.5 wt% NaCl solution

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论文类型:期刊论文

发表时间:2020-03-01

发表刊物:CORROSION SCIENCE

收录刊物:EI、SCIE

卷号:164

ISSN号:0010-938X

关键字:Magnesium alloy; In; Electrochemical test; Corrosion behavior

摘要:The corrosion behavior of as-cast Mg-5Sn-xIn (x = 0, 1, 2, 3, 4, all in wt%) alloys in 3.5 wt% NaCl solution was investigated using weight loss, hydrogen evolution and electrochemical test. The results showed that the microstructures of all alloys consisted of typical coarse dendrites without the presence of any In-rich phase. The corrosion resistance of Mg-5Sn-xIn alloys was enhanced monotonously with increasing In content up to 3 wt%. The electrochemical measurements revealed that such improvements could be mainly attributed to the retardation of cathodic reaction, decreasing the rate of hydrogen evolution.