Properties and Structure of PEO Treated Aluminum Alloy

作     者：SHI Yuanji WANG Yanyan CHENG Cheng GUO Xunzhong TENG Bingyan YU Zhaopeng LI Junwan LI Wei 施渊吉;WANG Yanyan;CHENG Cheng;郭训忠;TENG Bingyan;YU Zhaopeng;LI Junwan;LI Wei

作者机构：School of Mechanical EngineeringNanjing Vocational University of Industry TechnologyNanjing 210046China College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China School of Automotive EngineeringChangshu Institute of Technology Suzhou 215500China School of Materials Science and EngineeringShanghai UniversityShanghai 200072China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2021年第36卷第3期

页      面：424-432页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Funded by the National Natural Science Foundation of China(No.11802117) the Natural Science Foundation of the Jiangsu Higher Education Institutions of China(No.19KJB430024) the Science Foundation of the Jiangsu Industrial Software Engineering Research Center(No.ZK190401) 

主　　题：7075 aluminum alloy plasma electrolytic oxidation(PEO) wearing corrosion friction coefficient 

摘      要：Plasma electrolytic oxidation(PEO)coatings were formed on 7075 aluminum alloy in silicate-borate based electrolyte with different duty *** physical and chemical properties of the PEO coatings were thoroughly *** wearing and corrosion properties of the coatings were evaluated by wearing experiments and potentiodynamic polarization tests,*** results showed that the micro-hardness of the coatings first increased and then decreased with the increasing duty *** a results,the wearing resistance of the coatings first increased and then decreased with the increasing duty *** analysis proved that the coatings were mainly composed ofα-Al_(2)O_(3)andγ-Al_(2)O_(3).The presence of wear scars on the worn surface morphology demonstrates that the three-body rolling was the main wear mechanism for coated *** corrosion study showed that the coating formed in the mixed electrolyte with duty cycle of 80%showed the most superior corrosion resistance.