Dry-sliding tribological behaviour of Fe-28Al-5Cr/TiC composites
文献类型：期刊论文
| 作者 | Bi QL(毕秦岭) ; Liu WM(刘维民); Yang J(杨军); Ma JQ(马吉强)
|
| 刊名 | Wear
 |
| 出版日期 | 2011 |
| 卷号 | 271页码:881-888 |
| 关键词 | Intermetallics Sliding wear Cermets Metal-matrix composite |
| ISSN号 | 0043-1648 |
| 通讯作者 | 杨军 |
| 中文摘要 | Dry-sliding tribological performance of the Fe–28Al–5Cr and its composites containing 15, 25, 35, 50 wt.% TiC, produced by hot-pressing process, was investigated against an AISI 52100 steel ball in ambient environment at varying applied load and sliding speed. It can be found that the coefficient of friction (COF) is irrespective of TiC content and applied load, but increases from 0.46 to 0.60 with increasing sliding speed at the given testing conditions. The wear-resistance increases with an increase of TiC contents. Impressively when TiC amount reaches 50 wt.%, the wear-resistance improves about 4–30 times compared to the pure Fe–28Al–5Cr at different sliding parameters. The wear rates of all the materials increase mildly with an increase in applied load, but are nearly independent of the sliding speed at an applied load of 20 N. The wear rates of the all materials are on the order of 10−3–10−4mm3m−1. In a word, the addition of the TiC can improve significantly the dry-sliding wear-resistance of the Fe–28Al–5Cr intermetallics at room temperature. The enhanced wear-resistance is attributed to the high hardness of the composites and as well hard TiC phase play a role of load-carrying. Worn surface features of all the materials were examined using a scanning electron microscopy (SEM). The dominant wear mechanism of Fe–28Al–5Cr and 15% composite was flaking-off, but those of 25–50% composites was flaking-off and plowing. |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (50801064);the National 973 Project of China (2007CB607601);the Innovation Group Foundation from NSFC (50721062) |
| 语种 | 英语 |
| 公开日期 | 2013-12-03 |
| 源URL | [http://210.77.64.217/handle/362003/4299]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Bi QL,Liu WM,Yang J,et al. Dry-sliding tribological behaviour of Fe-28Al-5Cr/TiC composites[J]. Wear,2011,271:881-888. |
| APA | Bi QL,Liu WM,Yang J,&Ma JQ.(2011).Dry-sliding tribological behaviour of Fe-28Al-5Cr/TiC composites.Wear,271,881-888. |
| MLA | Bi QL,et al."Dry-sliding tribological behaviour of Fe-28Al-5Cr/TiC composites".Wear 271(2011):881-888. |
入库方式： OAI收割
来源：兰州化学物理研究所
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