High temperature tribological behavior of a Ti-46Al-2Cr-2Nb intermetallics
文献类型：期刊论文
| 作者 | Cheng J(程军)1,3 ; Yang J(杨军)1; Zhang XH(张兴华)1,3; Zhong H(钟红)2; Ma JQ(马吉强)1; Li F(李斐)1; Fu LC(符立才)1; Bi QL(毕秦岭)1; Li JS(李金山)2; Liu WM(刘维民)1
|
| 刊名 | Intermetallics
 |
| 出版日期 | 2012 |
| 卷号 | 31页码:120-126 |
| 关键词 | Titanium aluminides based on TiAl Tribological properties |
| ISSN号 | 0966-9795 |
| 通讯作者 | 杨军 ; 李金山 |
| 英文摘要 | Tribological behavior of a Ti-46Al-2Cr-2Nb alloy, produced by hot-pressed sintering, was investigated using a home-built ball-on-disc tribotester against a Si3N4 ceramic ball at a constant speed of 0.188 m s−1 and an applied load of 10 N from 20 to 900 °C. It was found that the friction coefficient decreased slowly with increasing temperature from 20 to 600 °C, and then rose and reached the highest value at 800 °C, but slightly dropped at 900 °C. The wear rate of the alloy, in the magnitude of 10−4 mm3/Nm, increased mildly with increasing temperature to a maximum value at 400 °C and then dropped rapidly from 600 to 800 °C, and increased a little at 900 °C. The wear mechanism of the alloy transformed from mainly ploughing and small delamination wear at 20–700 °C to plastic deformation and adhesive wear at 800 and 900 °C. The transition of the wear mechanism occurred between 700 and 750 °C. The friction and wear behavior of the hot-pressed Ti-46Al-2Cr-2Nb alloy was comparable to that of a vacuum casting Ti-41.7Al-8.3Nb-0.09Y alloy measured under the same conditions for comparative purposes. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (50801064;51104120) |
| 语种 | 英语 |
| WOS记录号 | WOS:000310399000017 |
| 公开日期 | 2013-07-12 |
| 源URL | [http://210.77.64.217/handle/362003/3341]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Yang J(杨军) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng J,Yang J,Zhang XH,et al. High temperature tribological behavior of a Ti-46Al-2Cr-2Nb intermetallics[J]. Intermetallics,2012,31:120-126. |
| APA | Cheng J.,Yang J.,Zhang XH.,Zhong H.,Ma JQ.,...&杨军.(2012).High temperature tribological behavior of a Ti-46Al-2Cr-2Nb intermetallics.Intermetallics,31,120-126. |
| MLA | Cheng J,et al."High temperature tribological behavior of a Ti-46Al-2Cr-2Nb intermetallics".Intermetallics 31(2012):120-126. |
入库方式： OAI收割
来源：兰州化学物理研究所
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