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A Comparative Investigation on the Corrosion Behavior of cast and rolled ZG21 Mg Alloys
Chen, Peng; Song, Yingwei; Liu, Jinhui; Shan, Dayong; Han, En-Hou; Song, YW (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
2017-05-01
发表期刊INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
卷号12期号:5页码:3765-3781
摘要ZG21 Mg alloys exhibit excellent deformation ability at room temperature. However, their corrosion behavior lacks sufficient investigation. The relationship between the second phases and micro-galvanic corrosion of ZG21 Mg alloys has been investigated using Atomic Force Microscopy (AFM), Scanning Kelvin Probe Force Microscopy (SKPFM), and electrochemical measurements. Mg3Zn3Gd2 second phases act as micro-cathodes due to their nobler potential than alpha-Mg matrix. Localized corrosion occurs at cast ZG21, whereas general corrosion occurs at rolled ZG21. The rolled alloy shows better corrosion resistance owing to the relatively more homogeneous distribution and finer second phases.; ZG21 Mg alloys exhibit excellent deformation ability at room temperature. However, their corrosion behavior lacks sufficient investigation. The relationship between the second phases and micro-galvanic corrosion of ZG21 Mg alloys has been investigated using Atomic Force Microscopy (AFM), Scanning Kelvin Probe Force Microscopy (SKPFM), and electrochemical measurements. Mg3Zn3Gd2 second phases act as micro-cathodes due to their nobler potential than alpha-Mg matrix. Localized corrosion occurs at cast ZG21, whereas general corrosion occurs at rolled ZG21. The rolled alloy shows better corrosion resistance owing to the relatively more homogeneous distribution and finer second phases.
部门归属[chen, peng ; song, yingwei ; liu, jinhui ; shan, dayong ; han, en-hou] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china
关键词Second Phases Zg21 Mg Alloys Afm Skpfm Micro-cathodes
学科领域Electrochemistry
资助者National Natural Science Foundation of China [51471174]; National Key Basic Research Program of China [2013CB632205]; National Key Research and Development Program of China [2016 YFB0301105]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78156
专题中国科学院金属研究所
通讯作者Song, YW (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Chen, Peng,Song, Yingwei,Liu, Jinhui,et al. A Comparative Investigation on the Corrosion Behavior of cast and rolled ZG21 Mg Alloys[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(5):3765-3781.
APA Chen, Peng,Song, Yingwei,Liu, Jinhui,Shan, Dayong,Han, En-Hou,&Song, YW .(2017).A Comparative Investigation on the Corrosion Behavior of cast and rolled ZG21 Mg Alloys.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(5),3765-3781.
MLA Chen, Peng,et al."A Comparative Investigation on the Corrosion Behavior of cast and rolled ZG21 Mg Alloys".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.5(2017):3765-3781.
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