利用化学镀技术制备镀铜和镀镍石墨粉,采用粉末冶金复压复烧工艺制备铜基石墨自润滑复合材料,测试了复合材料的摩擦磨损性能,利用X射线衍射、扫描电镜和能谱仪等分析该复合材料的结构、摩擦磨损性能及机理.结果表明:石墨表面铜、镍镀层改善了石墨和铜合金基体界面结合,摩擦过程中所形成的润滑膜与基体粘附性好,显示出更好的润滑减摩效果,摩擦副摩擦因数由0.24降低到0.20,磨损率降低约50%;实验条件下,6%(质量分数)石墨铜基复合材料经历轻微磨损、中等磨损和严重磨损3个磨损过程;而6%镀铜、镀镍石墨铜基复合材料只经历轻微磨损和中等磨损两个磨损过程.
参考文献
| [1] | Sadykov F.A.;Aslanyan I.R.;Barykin N.P. .Wear of copper and its alloys with submicrocrystalline structure[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1999(1):649-655. |
| [2] | Kestursatya M.;Kim JK.;Rohatgi PK. .Wear performance of copper-graphite composite and a leaded copper alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):150-158. |
| [3] | 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. |
| [4] | 宁莉萍,王齐华,王琪,赵普,杨丽君.锡青铜网增强锡青铜基自润滑复合材料的机械和摩擦学性能研究[J].摩擦学学报,2003(05):380-384. |
| [5] | S. F. Moustafa;S. A. El-Bardy;A. M. Sanad;B. Kieback .Friction and wear of copper-graphite composites made with Cu-coated and uncoated graphite powders[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2002(7/8):699-710. |
| [6] | 杜春宽,尹延国,刘焜,郑治祥.镀镍石墨粉表面球化及与铜合金基体界面结合的研究[J].机械工程材料,2007(04):25-28,36. |
| [7] | Hirotaka Kato;Masahiro Takama;Yoshiro Iwai;Kazuo Washida;Yoshinori Sasaki .Wear and mechanical properties of sintered copper-tin composites containing graphite or molybdenum disulfide[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2003(1/6):573-578. |
| [8] | S. F. Moustafa;S. A. El-Badry;A. M. Sanad .Effect of graphite with and without copper coating on consolidation behaviour and sintering of copper-graphite composite[J].Powder Metallurgy,1997(3):201-206. |
| [9] | 尹延国,杜春宽,郑治祥,解挺,刘焜,吴玉程.镀镍石墨粉对铜基石墨复合材料力学性能的影响[J].中国有色金属学报,2006(11):1895-1901. |
| [10] | 尹延国 .铜基石墨自润滑材料及其摩擦学研究[D].合肥工业大学,2006. |
| [11] | 尹延国,刘君武,郑治祥,郑玉春,刘焜,解挺.石墨对铜基自润滑材料高温摩擦磨损性能的影响[J].摩擦学学报,2005(03):216-220. |
| [12] | 尹延国,郑治祥,马少波,刘焜.温度对铜基自润滑材料减摩耐磨特性的影响[J].中国有色金属学报,2004(11):1856-1861. |
| [13] | 孔晓丽,刘勇兵,陆有,霍福祥.粉末冶金高温金属基固体自润滑材料[J].粉末冶金技术,2001(02):86-92. |
| [14] | D.Grimanelis;S.Yang;O.Bohme;E.Roman;A.Alberdi;D.G.Teer;J.M.Albella .Carbon based coatings for high temperature cutting tool applications[J].Diamond and Related Materials,2002(2):176-184. |
| [15] | Alpas A T;Zhang J .Effect of SiC particulate reinforcement on the dry sliding wear of aluminium-silicon alloys[J].Wear,1992,155:83-104. |
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%