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材料工程  2014, Vol. 0 Issue (3): 41-45    DOI: 10.3969/j.issn.1001-4381.2014.03.007
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
304不锈钢与Sn作用后腐蚀性能评价
赵艳, 程从前, 曹志远, 赵杰
大连理工大学 材料科学与工程学院, 辽宁 大连 116024
Corrosion Property of Sn Interacted 304 Stainless Steel
ZHAO Yan, CHENG Cong-qian, CAO Zhi-yuan, ZHAO Jie
School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
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摘要 通过动电位极化和恒电流恒电位极化测试研究了低熔点金属Sn对304不锈钢腐蚀性能的影响,并采用扫描电子显微镜观察样品的腐蚀形貌。动电位极化的实验结果表明:黏附于304不锈钢表面的Sn加速了基体点蚀的形成,并且Sn的量越多点蚀越严重。不同时间的恒电位极化也说明在相同实验条件下Sn存在的304不锈钢,腐蚀坑多且深。恒电流极化测试表明Sn降低304不锈钢的腐蚀性能,源于电极电位较低的Sn容易点蚀,使腐蚀坑内酸性升高最终导致钢的破坏。
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赵艳
程从前
曹志远
赵杰
关键词 低熔点金属Sn不锈钢电化学腐蚀    
Abstract:Effect of low melting point Sn on electrochemical corrosion property of 304 stainless steel was investigated by potentiodynamic polarization test, galvanostatic polarization test and constant potential polarization test. The corrosion morphologies were observed using scanning electron microscope (SEM). Potentiodynamic polarization test and constant potential polarization test demonstrate that low melting point metal Sn adhered on 304 stainless steel surface accelerate substrate pitting formation, and the pittings increase with the increasing Sn amount. Galvanostatic polarization test illustrated Sn decrease the corrosion property due to the preferred corrosion Sn increase the acidity in the pittings.
Key wordslow melting point metal Sn    stainless steel    electrochemical corrosion
收稿日期: 2012-10-25     
1:  TG174  
基金资助:国家重点基础研究发展计划“973”项目(2009CB724305);国家自然科学基金项目(51101024)
通讯作者: 赵杰(1964- ),男,教授,博士生导师,研究方向为材料的界面迁移及扩散,联系地址:大连理工大学材料科学与工程学院(116024)     E-mail: jiezhao@dlut.edu.cn
作者简介: 赵艳(1983- ),女,博士生,主要研究方向:核电材料的表面污染与防护,E-mail:zhaoyan-a@mail.dlut.edu.cn
引用本文:   
赵艳, 程从前, 曹志远, 赵杰. 304不锈钢与Sn作用后腐蚀性能评价[J]. 材料工程, 2014, 0(3): 41-45.
ZHAO Yan, CHENG Cong-qian, CAO Zhi-yuan, ZHAO Jie. Corrosion Property of Sn Interacted 304 Stainless Steel. Journal of Materials Engineering, 2014, 0(3): 41-45.
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http://jme.biam.ac.cn/jme/CN/10.3969/j.issn.1001-4381.2014.03.007      或      http://jme.biam.ac.cn/jme/CN/Y2014/V0/I3/41
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