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AM50镁合金表面含氧化锆的微弧氧化复合涂层的形成过程(英文)
引用本文:刘锋,单大勇,宋影伟,韩恩厚.AM50镁合金表面含氧化锆的微弧氧化复合涂层的形成过程(英文)[J].中国有色金属学会会刊,2011,21(4):943-948.
作者姓名:刘锋  单大勇  宋影伟  韩恩厚
作者单位:中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳,110016
基金项目:Project(2007CB613705)supported by the National Basic Research Program of China; Project(50901082)supported by the NationalNatural Science Foundation of China
摘    要:采用扫描电镜(SEM)和电子衍射能谱(EDX)研究在含K2ZrF6的溶液中AM50镁合金表面复合微弧体氧化涂层的形成过程。采用电化学阻抗谱(EIS)研究在微弧体氧化制备膜层过程中膜层耐腐蚀性能的变化。结果表明:当电压小于起弧电压时,合金表面膜层的主要成分为MgO和MgF2;当施加电压超过起弧电压时,锆氧化物开始在合金表面沉积,且膜层的耐腐蚀性随着电压的升高而提高。

关 键 词:微弧氧化膜  锆氧化物  MgO  耐腐蚀性

Formation process of composite plasma electrolytic oxidation coating containing zirconium oxides on AM50 magnesium alloy
LIU Feng,SHAN Da-yong,SONG Ying-wei,HAN En-hou.Formation process of composite plasma electrolytic oxidation coating containing zirconium oxides on AM50 magnesium alloy[J].Transactions of Nonferrous Metals Society of China,2011,21(4):943-948.
Authors:LIU Feng  SHAN Da-yong  SONG Ying-wei  HAN En-hou
Affiliation:LIU Feng,SHAN Da-yong,SONG Ying-wei,HAN En-hou State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
Abstract:The formation processes of a composite ceramic coating on AM50 magnesium alloy prepared by plasma electrolytic oxidation (PEO) in a K 2 ZrF 6 electrolyte solution were studied by scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDX). Electrochemical impedance spectroscopy (EIS) tests were used to study the variation of the corrosion resistance of the coating during the PEO treatment. The results show that the coating formed on Mg alloy is mainly composed of MgO and MgF 2 when the...
Keywords:MgO
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