用冷压烧结粉末冶金法制备了铜-10%石墨复合材料;对复合材料进行了拉伸、冲击试验;用SEM、电滑动磨损试验机等分析了材料的断口形貌和载流摩擦磨损性能,探讨了其磨损机理.结果表明:由于铜-10%石墨复合材料中石墨含量较高,该材料的拉伸断裂为脆性断裂;在非栽流条件下,试样的磨损量随着试验载荷、滑动速度的增加而增大;载流30 A条件下,由于电流产生大量的电弧热促进了石墨的润滑作用,与非载流相同磨损条件结果相比摩擦因数降低、磨损量减小.
参考文献
| [1] | 许少凡,李政,王文芳,王成福.镀铜石墨粉含量对铜-镀铜石墨复合材料组织与性能的影响[J].热加工工艺,2003(01):18-19,59. |
| [2] | 钱中良,盛伟,张枝苗,顾升兴,支建方,王育权,杨永吉.碳滑板发展概况及我国的研究进展[J].机车电传动,2003(z1):5-8. |
| [3] | 郭斌,金永平,郑艾龙,周健.铜基受电弓滑板材料抗拉强度和冲击韧性研究[J].材料科学与工艺,2003(01):59-63. |
| [4] | 王贵青,陈敬超,孙加林.电力机车受电弓滑板的研究状况及发展趋势[J].材料导报,2003(01):18-20. |
| [5] | Chawla N;Deng X .Microstructure and mechanical behavior of porous sintered steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):98-112. |
| [6] | 陈美花,竺培显,钟毅.金属基石墨复合材料的制备与应用[J].热加工工艺,2006(04):65-67. |
| [7] | 陈军,姚萍屏,盛洪超,徐国富.碳对铜基粉末冶金摩擦材料性能的影响[J].热加工工艺,2006(14):13-16. |
| [8] | H. Zhao;G. C. Barber;J. Liu .Friction and wear in high speed sliding with and without electrical current[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(5/6):409-414. |
| [9] | S.G. Jia;P. Liu;F.Z. Ren .Wear behavior of Cu-Ag-Cr alloy wire under electrical sliding[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):262-267. |
| [10] | S. G. Jia;P. Liu;F. Z. Ren;B. H. Tian;M. S. Zheng;G. S. Zhou .Sliding wear behavior of copper alloy contact wire against copper-based strip for high-speed electrified railways[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(7/8):772-777. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%