付传起,王宙.石墨/铜铁基自润滑复合材料的摩擦学性能研究[J].表面技术,2010,39(4):11-14.
FU Chuan-qi,WANG Zhou.Study on Tribological Properties of Graphite/Cu-Fe Matrix Self-lubricating Composites[J].Surface Technology,2010,39(4):11-14 |
| 石墨/铜铁基自润滑复合材料的摩擦学性能研究 |
| Study on Tribological Properties of Graphite/Cu-Fe Matrix Self-lubricating Composites |
| 投稿时间：2010-04-29 修订日期：2010-08-10 |
| DOI： |
| 中文关键词: 石墨/铜铁基自润滑材料 摩擦因数 磨损率 |
| 英文关键词:graphite/Cu-Fe matrix self-lubricating composites friction coefficient wear loss rate |
| 基金项目:国家自然科学基金资助项目(20776022) |
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| 中文摘要: |
| 采用感应加热烧结粉末冶金的方法,以铜铁合金为基体,添加石墨制备石墨/铜铁基自润滑复合材料,对比研究了添加石墨前后2种材料的组成、结构、表面形貌及摩擦学性能,并分析了磨损机理。研究结果表明:添加石墨能起到润滑作用,使材料的摩擦因数减小,磨损率降低;添加的石墨一部分转化成新态,其余则进入材料的空隙中,在摩擦过程中形成润滑膜起到减摩的作用;添加石墨后,摩擦材料的磨损机制由粘着磨损变为磨粒磨损。 |
| 英文摘要: |
| By adding graphite in Cu-Fe matrix, the graphite/Cu-Fe matrix self-lubricating composites were prepared by means of induction hot-pressing sintering method. Comparing to Cu-Fe matrix, the composition, structure, surface morphology of composite with graphite were investigated. Furthermore, wear mechanism was analyzed. Experimental results show that, with increasing graphite content, friction coefficient and wear rate decrease; graphite additive is changed into new alloy partly, rest of graphite comes in gap to be lubricating film and plays a role in reducing wear loss. Meanwhile, wear mechanism of composites has been changed from abrasive wear to grain wear. |
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