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  

Effects of Indium Sulfide on the Structure and Corrosion Resistance of the Micro-arc Oxidation Coating on ZL108 Alloy

作　　者：王平[1,2,3] 胡杰 李瑞阳 龚泽宇 刘济威 熊丹 向东 魏晓伟 祖小涛[2] Wang Ping;Hu Jie;Li Ruiyang;Gong Zeyu;Liu Jiwei;Xiong Dan;Xiang Dong;Wei Xiaowei;Zu Xiaotao(School of Materials Science and Engineering,Southwest Petroleum University,Chengdu 610500,China;School of Physics,University of Electronic Science and Technology of China,Chengdu 611731,China;School of Materials Science and Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]西南石油大学材料科学与工程学院,四川成都610500 [2]电子科技大学物理学院,四川成都611731 [3]西华大学材料科学与工程学院,四川成都610039

出　　处：《稀有金属材料与工程》2021年第1期56-62,共7页Rare Metal Materials and Engineering

基　　金：China Postdoctoral Science Foundation(2019M663470)。

摘　　要：在含有In2S3的硅酸盐电解液中对ZL108铝合金进行了微弧氧化处理。采用扫描电镜(SEM)、光学轮廓仪、X射线衍射(XRD)、X射线光电子能谱(XPS)和电化学工作站等检测手段,研究了添加In2S3对MAO膜层微观结构、相组成和耐蚀性等的影响。结果表明,In2S3的加入提高了微弧氧化电压,使膜层成膜速率增加,从而导致膜层厚度增加。在含有In2S3的电解液中形成的膜层致密性更好,膜层显微硬度提高,膜层的耐蚀性增强。膜层主要由α-Al2O3、γ-Al2O3和SiO2相组成。XPS检测结果表明In2S3在氧化过程中转变为In2O3。因此,添加In2S3优化了MAO膜层结构,提高了MAO膜层的综合性能。Micro-arc oxidation(MAO)coatings were formed on ZL108 aluminum alloy in the silicate electrolyte with In 2S3.Scanning electron microscopy(SEM),optical profilometer,X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS)and electrochemical workstation were used to study the effects of In2S3 on the micro-structure,phase composition and corrosion resistance of the micro-arc oxidation coating.The results show that the addition of In2S3 increased the micro-arc oxidation voltage so the coating formation rate was increased,which resulted in the increasing of the thickness of the micro-arc oxidation coating.The micro-arc oxidation coating formed in the electrolyte containing In2S3 had higher density and micro-hardness,resulting in the enhanced corrosion resistance.The phases of the micro-arc oxidation coating were mainly composed ofα-Al2O3,γ-Al2O3 and SiO2.XPS test result shows that In2S3 was converted to In2O3 during the micro-arc oxidation process.Therefore,the addition of In2S3 can optimize the structure of the micro-arc oxidation coating and improve its comprehensive properties.

关 键 词：微弧氧化 ZL108铝合金 硫化铟 耐蚀性 

分 类 号：TG146.21[一般工业技术—材料科学与工程]