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王平,胡杰,李瑞阳,龚泽宇,刘济威,熊丹,向东,魏晓伟,祖小涛.硫化铟对ZL108铝合金微弧氧化膜层结构和耐腐蚀性能的影响[J].稀有金属材料与工程(英文),2021,50(1):56~62.[wang ping,Hu jie,Li Ruiyang,Gong Zeyu,Liu Jiwei,Xiong Dan,Xiang Dong,Wei Xiaowei and Zu Xiaotao.Effects of Indium sulfide on structure and corrosion resistance of the micro-arc oxidation coating on ZL108 alloy[J].Rare Metal Materials and Engineering,2021,50(1):56~62.]
Effects of Indium sulfide on structure and corrosion resistance of the micro-arc oxidation coating on ZL108 alloy
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Received:November 29, 2019  
DOI:
Key words: Micro-arc oxidation  ZL108 alloy  Indium sulfide  Corrosion resistance
Foundation item:中国博士后科学基金资助项目(2019M663470)
Author NameAffiliation
wang ping,Hu jie,Li Ruiyang,Gong Zeyu,Liu Jiwei,Xiong Dan,Xiang Dong,Wei Xiaowei and Zu Xiaotao  
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Abstract:
      Different micro-arc oxidation coatings were fabricated on ZL108 alloy in the silicate electrolyte without and with In2S3. Scanning electron mi-croscope (SEM), Optical Profiler, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electrochemical workstation and so on were used to study the influence of In2S3 on the microstructure, phase composition, corrosion resistance,micro-hardness and thickness of the MAO coating. The results showed that the addition of In2S3 can increase the voltage of the MAO, promote the MAO coating formation rate and increase the coating thickness. The coating formed containing In2S3 was denser and the micro-hardness of the coating was increased. Therefore, the corrosion resistance of the coating with In2S3 was improved. The main phases of all the MAO coating were α-Al2O3, γ-Al2O3 and SiO2. The XPS result showed that In2O3 was formed on the coating surface. As a consequence, adding In2S3 can optimize the structure of the MAO coating and enhance its comprehensive properties.