在自制的销盘式载流摩擦磨损试验机上,采用热电偶测量法检测不同电流密度下销试样的表面温度;研究滑动速度和电流密度对配副摩擦磨损性能的影响,采用扫描电镜观察载流磨损后黄铜表面形貌.结果表明:电流密度对铬青铜/黄铜配副的摩擦学特性和表面温度有显著影响;在载流条件下,摩擦表面的温度比无电流时明显升高,电流密度越大,表面温度越高;滑动速度较低时,电流密度对材料表面温度的影响更为显著;随电流密度的增加,铬青铜/黄铜配副的摩擦因数降低,黄铜销试样的磨损率升高;磨损表面存在电弧侵蚀,电弧的存在加剧材料的磨损.
参考文献
| [1] | C.R.F. Azevedo;A. Sinatora .Failure analysis of a railway copper contact strip[J].Engineering failure analysis,2004(6):829-841. |
| [2] | Da Hai He;Rafael Manory .A novel electrical contact material with improved self-lubrication for railway current collectors[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(7):626-636. |
| [3] | 贾淑果,刘平,田保红,郑茂盛,周根树,娄花芬.高强高导Cu-0.1Ag-0.11Cr合金的强化机制[J].中国有色金属学报,2004(07):1144-1148. |
| [4] | 虞澜.金-稀土合金电刷丝的磨损机理研究[J].摩擦学学报,2002(04):282-285. |
| [5] | 郑冀;欧阳锦林;朱家佩 .真空长寿命自润滑电刷-滑环材料的研究[J].摩擦学学报,1997,17(02):129-138. |
| [6] | LIU C P;VERHOEVEN J D;GIBSON E D .Gibson electritribological behavior of Cu-15vol.% Cr in situ composites under dry sliding[J].Wear,1997,203-204:28-35. |
| [7] | 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. |
| [8] | 凤仪,张敏,徐屹.外加载荷对碳纳米管-银-石墨复合材料电磨损性能的影响[J].中国有色金属学报,2005(10):1483-1488. |
| [9] | A. Bouchoucha;S. Chekroud;D. Paulmier .Influence of the electrical sliding speed on friction and wear processes in an electrical contact copper-stainless steel[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2004(4):330-342. |
| [10] | 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. |
| [11] | KUBO S;KATO K .Effect of arc discharge on the wear rate and wear mode transition of a opper-impregnated metallized carbon contact strip sliding against a copper disk[J].Tribology International,1999,32:367-378. |
| [12] | S. Kubo;K. Kato .Effect of arc discharge on wear rate of Cu-impregnated carbon strip in Unlubricated sliding against Cu trolley under electric current[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1998(2):172-178. |
| [13] | Degnan CC.;Wood JV.;Shipway PH. .Elevated temperature sliding wear behaviour of TiC-reinforced steel matrix composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(2):1444-1451. |
| [14] | Chong Ching Chang;Jen Fin Lin;Chung Yi Chen;Chi-Fong Ai .The effect of under-layers and pre-test temperature on the tribological characteristics of TiN films rubbing against steel[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2004(3/4):252-267. |
| [15] | 戴利民,林吉忠,刘越,丁新华.受电弓滑板受流摩擦中体温升的模拟计算分析[J].铁道学报,2002(05):56-61. |
| [16] | D. H. He;R. R. Manory;N. Gardy .Wear of railway contact wires against current collector materials[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1998(1/2):146-155. |
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%