Analysis of Electric Sliding Wear Morphology of Al<sub>2</sub>O<sub>3</sub>/Cu Composites

Wang Qing1; Song Kexing1; Guo Xiuhua1; Zhao Peifeng1; Li Yadong3; Gao Jianxin3

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Analysis of Electric Sliding Wear Morphology of Al₂O₃/Cu Composites
Vol. 29, Issue 5, Pages: 449-451(2009)
Published： 2009 ，
DOI：

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[1]王青,宋克兴,国秀花,赵培峰,李亚东,郜建新.Al_2O_3/Cu复合材料电滑动磨损微观形貌分析[J].特种铸造及有色合金,2009,29(05):449-451+389.

Wang Qing1, Song Kexing1, Guo Xiuhua1, et al. Analysis of Electric Sliding Wear Morphology of Al₂O₃/Cu Composites. [J]. Special Casting & Nonferrous Alloys 29(5):449-451(2009)
[1]王青,宋克兴,国秀花,赵培峰,李亚东,郜建新.Al_2O_3/Cu复合材料电滑动磨损微观形貌分析[J].特种铸造及有色合金,2009,29(05):449-451+389. DOI：

Wang Qing1, Song Kexing1, Guo Xiuhua1, et al. Analysis of Electric Sliding Wear Morphology of Al₂O₃/Cu Composites. [J]. Special Casting & Nonferrous Alloys 29(5):449-451(2009) DOI：

摘要

对Al2O3/Cu复合材料进行电滑动磨损试验

并对磨损后的试样表面进行了微观组织观察与分析。结果表明

Al2O3/Cu复合材料在磨损过程中

无加载电流时磨损机制主要为粘着磨损和磨粒磨损

载流条件下磨损机制主要为粘着磨损、磨粒磨损和电烧蚀磨损。在载流条件下

Al2O3/Cu复合材料表层有明显的塑性变形

这促进了裂纹的产生和扩展

并伴有电烧蚀和熔融转移。随着电流的增大电烧蚀越严重

磨损进程加快。

Abstract

The worn surface morphology of electric sliding wear Al

/Cu composites was observed by OM（optical microscope）and SEM（scanning electron microscope）.It is concluded that during the wearing process of Al

/Cu composites

the wear mechanism is characterized by adhesive wear and abrasive wear without current

while it is characterized by adhesive wear

abrasive wear and electrical erosion in the condition of current.Obvious plastic deformation on the surface of Al

/Cu composites can be observed in case of current

which can accelerate the creation and propagation of crack with electric erosion and transfer of fused mass.The wearing process is more serious with increasing in current as a result of more and more serious electric erosion.