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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
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume12Issue:5Pages:3765-3781
AbstractZG21 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.
description.department[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
KeywordSecond Phases Zg21 Mg Alloys Afm Skpfm Micro-cathodes
Subject AreaElectrochemistry
Funding OrganizationNational Natural Science Foundation of China [51471174]; National Key Basic Research Program of China [2013CB632205]; National Key Research and Development Program of China [2016 YFB0301105]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78156
Collection中国科学院金属研究所
Corresponding AuthorSong, YW (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
Recommended Citation
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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