| 不同载荷下C/C复合材料往返式滑动摩擦行为 |
| |
| 引用本文： | 葛毅成,易茂中,涂欣达,彭可.不同载荷下C/C复合材料往返式滑动摩擦行为[J].中南大学学报(自然科学版),2010,41(1). |
| |
| 作者姓名： | 葛毅成 易茂中 涂欣达 彭可 |
| |
| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083 |
| |
| 基金项目： | 国家重点基础研究发展计划("973"计划)项目 |
| |
| 摘 要： | 以GCr钢球为对偶,在UMT-3微摩擦试验机上测试2种具有不同基体炭结构的C/C复合材料长时间往返式滑动摩擦磨损行为。研究结果表明:在相同载荷下,具有粗糙层热解炭基体的材料A的平均摩擦因数高于具有光滑层/树脂炭基体的材料B平均摩擦因数;在60N时,材料A的平均摩擦因数出现最大值,为0.193;而材料B的平均摩擦因数出现最低值,为0.120;随着载荷的增加,2种材料的平均摩擦因数均出现较大的波动,其中:材料A的平均摩擦因数变化趋势为先升后降,材料B的平均摩擦因数先降后升,但二者的差值随载荷增加先增后减;随着时间的延长,所有试样的摩擦因数均逐渐趋于稳定;材料A的摩擦表面膜较完整、致密,但存在大块摩擦膜剥落或交替堆叠;材料B的摩擦表面较粗糙,形成纤维与基体炭分开堆积成膜形貌。
|
| 关 键 词： | C/C复合材料 往返式摩擦 载荷 |
To-fro sliding tribological behavior of C/C composite under different loads |
| |
| GE Yi-cheng,YI Mao-zhong,TU Xin-da,PENG Ke.To-fro sliding tribological behavior of C/C composite under different loads[J].Journal of Central South University:Science and Technology,2010,41(1). |
| |
| Authors: | GE Yi-cheng YI Mao-zhong TU Xin-da PENG Ke |
| |
| Institution: | GE Yi-cheng,YI Mao-zhong,TU Xin-da,PENG Ke (State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China) |
| |
| Abstract: | Two C/C composites with different carbon matrixes were prepared. The long-term to-fro friction and wear behavior of theirs were tested against GCr steel mates in UMT-3 wear tester under different applied loads. The results show that the average coefficients of friction (COF) of composite A with rough lamination pyrocarbon matrix (RL) are larger than those of composites B with smooth lamination pyrocarbon/resin carbon matrix (SL/RC). The largest average COF of composites A is 0.193 produced under 60 N, while... |
| |
| Keywords: | C/C composites to-fro friction behavior loads |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
