DRY SLIDING WEAR OF MICRO-ARC OXIDATION COATINGS ON A356 ALUMINUM ALLOY UNDER DIFFERENT CONDITIONS

摘要：

The dry sliding wear resistance of micro-arc oxidation (MAO) ceramic coatings on A356 aluminum alloy was investigated in this paper. It was found that there was hardly no wear loss but weight increase of MAO coatings while the wear rate of the uncoated aluminum alloy was 4.3×10-5mm3/(N·m) at a speed of 0.52 m/s and a contact pressure of 0.1MPa.Even at the highest contact pressure of 0.7MPa, no collapse of MAO coating took place and the wear rate of the MAO coating was still less than 8×10-6 mm3/(N·m). With the increase of the contact pressure, the wear mechanism of MAO coatings turned from oxidative wear to abrasive wear.

作者: CUI Shihai TANG Hongtao LI Jianyu HAN Jianmin LI Weijing

作者单位: College of mechanical engineering, Tianjin University of Science and Technology, Tianjin, 300222,Chi School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 10004

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）