Microstructure and Dry Sliding Wear Behavior of Copper-Graphite Composites by Spark Plasma Sintering of Mechanically Alloyed Powders
Copper-graphite composites were prepared using ball milling and subsequent spark plasma sintering (SPS). A Cu - based supersaturated solid solution was obtAlned after milling, together with nanoscale layered crystallites of graphite and amorphous-like carbon. SPS allowed densification of the Cu - C composites while preserving their nanostructure from mechanical alloying. C - existing low coefficient of friction and low wear rates were observed at intermediate load levels for the consolidated copper-graphite composites. This behavior is explAlned as due to the formation of a lubricious tribolayer covering the worn surface, in contrast to the adhesive wear at low loads and delamination wear at high loads.
sliding wear non-ferrous metals metal-matrix composite electron microscopy wear testing
Ran X. Huang X. F. Lin Y. B. An J.
Department of Materials and Engineering, Changchun University of Technology, Changchun 130012, China Key Laboratory of Automobile Materials, Ministry of Education .Jilin University, Changchun 130025, C
国际会议
69th World Foundry Congress(第69届世界铸造会议 WFC 2010)
杭州
英文
471-476
2010-10-16（万方平台首次上网日期，不代表论文的发表时间）