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Effect of Mn content on the microstructure and corrosion resistance of Al-Cu-Mg-Mn alloys

文献类型:期刊论文

作者Fu, Junwei1,3; Cui, Kai2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2022-03-10
卷号896页码:10
关键词Al-Cu-Mg-Mn alloy Aging treatment Corrosion resistance Potentiodynamic polarization Electrochemical impedance spectroscopy
ISSN号0925-8388
DOI10.1016/j.jallcom.2021.162903
通讯作者Fu, Junwei(hitfujw@163.com)
英文摘要Effect of Mn content on the microstructure and corrosion resistance of Al-Cu-Mg-Mn alloys was examined by optical microscope (OM), scanning electron microscope (SEM), tensile tests, pitting corrosion and electrochemical tests. It is shown that increase of Mn content can accelerate the aging process of the Al-CuMg-Mn alloys, which is beneficial to shorten heat treatment time. Polarization curves indicate that the corrosion current density and corrosion rate of Al-4Cu-2Mg-1.2Mn alloy are the lowest compared with Al4Cu-2Mg-0.6Mn and Al-4Cu-2Mg-0.9Mn alloys for both the as-cast and heat-treated conditions. Electrochemical impedance spectroscopy (EIS) tests also demonstrate that Al-4Cu-2Mg-1.2Mn alloy displays the highest resistance. The maximum pitting corrosion depth of the as-aged Al-4Cu-2Mg-1.2Mn and Al-4Cu-2Mg-0.6Mn alloys is about 65 mu m and 110 mu m, respectively. Therefore, Mn addition can improve the mechanical properties and corrosion resistance of the Al-Cu-Mg alloys. (c) 2021 Elsevier B.V. All rights reserved.
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000750037200002
出版者ELSEVIER SCIENCE SA
源URL[http://ir.qdio.ac.cn/handle/337002/178167]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Fu, Junwei
作者单位1.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
2.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714
Fu, Junwei,Cui, Kai. Effect of Mn content on the microstructure and corrosion resistance of Al-Cu-Mg-Mn alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,896:10.
APA Fu, Junwei,&Cui, Kai.(2022).Effect of Mn content on the microstructure and corrosion resistance of Al-Cu-Mg-Mn alloys.JOURNAL OF ALLOYS AND COMPOUNDS,896,10.
MLA Fu, Junwei,et al."Effect of Mn content on the microstructure and corrosion resistance of Al-Cu-Mg-Mn alloys".JOURNAL OF ALLOYS AND COMPOUNDS 896(2022):10.

入库方式: OAI收割

来源:海洋研究所

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