在XP-5型高温摩擦磨损试验机上考察了MoSi2/SiC配对副在1000 ℃不同载荷下的摩擦磨损性能, 并用SEM扫描电镜对MoSi2和SiC的磨损表面进行了观察, 用X射线分析了MoSi2的磨损表面相组成.结果表明: MoSi2/SiC摩擦副在1000 ℃高温滑动时, 随载荷增大摩擦系数逐渐减小;40 N时MoSi2的磨损率达到极大值;随载荷的增大, MoSi2的主要磨损机制依次表现为粘着、研磨、疲劳断裂和氧化磨损等形式.20～50 N时, SiC出现磨损增重现象, 归因于氧化增重作用高于磨损失重作用.
参考文献
| [1] | Vasudevan A K;Petrovic J J .A comparative overview of molybdenum disilicide composites[J].Materials Science and Engineering,1992,A155:1. |
| [2] | Petrovic J J .Key development in high temperature structural silicides[J].Materials Science and Engineering,1999,A261:1. |
| [3] | L. LIU;F. PADELLA;W. GUO;M. MAGINI .SOLID STATE REACTIONS INDUCED BY MECHANICAL ALLOYING IN METAL-SILICON (METAL = Mo, Nb) SYSTEMS[J].Acta Metallurgica et Materialia,1995(10):3755-3761. |
| [4] | Zhang Houan,Chen Pin,Wang Mengjun,LIU Xinyu.Room-temperature mechanical properties of WSi2/MoSi2 composites[J].稀有金属(英文版),2002(04):304-307. |
| [5] | Lohfeld S;Schtze M .Oxidation behavior of particle reinforced MoSi2 composites at temperature up to 1700 ℃ Part Ⅰ:Literature review[J].Materials and Corrosion,2005,56(02):93. |
| [6] | Hawk J A;Alman D E;Petrovic J J .Abrasive wear of Si3N4-MoSi2 composites[J].Wear,1997,203:247. |
| [7] | La P;Xue Q;Liu W .Study of wear resistant MoSi2-SiC composites fabricated by self-propagating high temperature synthesis casting[J].Intermetallics,2003,11:541. |
| [8] | Sun L;Pan J;Lin C .Wear behavior of TiC-MoSi2 composites[J].Materials Letters,2003,57:1239. |
| [9] | Zhang H;Hu X;Yan J;Chen P Tang S .Dry sliding wear behaviors of La2O3-WSi2-MoSi2 composite against alloy steel[J].Wear,2006,260:903. |
| [10] | 张厚安,陈平,刘心宇.机械合金化对MoSi2烧结致密化的影响[J].稀有金属材料与工程,2003(01):70-72. |
| [11] | 谭伟成,胡小平,唐思文,张厚安,黄之初.载荷对MoSi2高温磨损性能的影响[J].矿冶工程,2007(03):79-81,85. |
| [12] | 周松青,肖汉宁.碳化硅及其复相陶瓷高温摩擦化学的研究[J].中国陶瓷工业,2002(01):16-20. |
| [13] | 肖汉宁;千田哲也 .碳化硅陶瓷的高温摩擦磨损及机理分析[J].硅酸盐学报,1997,25(02):38. |
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%