| The Tribological Properties of NiCr-Al2O3-TiO2 Composites at Elevated Temperatures | |
| Department | 固体润滑国家重点实验室 |
Wang JY(汪建义)1,2; Shan Y(陕钰)1 ; Guo HJ(国洪建)1; Wang WZ(王文珍)1; Yi GW(易戈文)1; Jia JH(贾均红)1; Wang JY(汪建义)
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| 2015 | |
| Source Publication | Tribology Letters
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| ISSN | 1023-8883 |
| Volume | 58Issue:1Pages:1(1-10) |
| Abstract | Ni-based composite that contains TiO2 and Al2O3 was prepared by powder metallurgical hot pressing method. TiO2 and Al2O3 being added to Ni-based composite at the same mass fraction and the effects on some mechanical and tribological properties of the composites when rubbing against alumina ball were investigated from room temperature to 700 °C. The results show that the tribological properties of the composites were improved by adding TiO2 and Al2O3 simultaneously. The best comprehensive properties of mechanics and tribology were obtained when TiO2 and Al2O3 in the alloy have the same content of 10 wt%. The friction coefficient and wear rate of the composites decrease with the increasing of temperature and TiO2 and Al2O3 contents, and the composites with addition of 10 wt% TiO2 and 10 wt% Al2O3 exhibit the lowest friction coefficient (0.32) and wear rate (1.71 × 10−5 mm3/N m) at 700 °C. XRD and SEM equipped with EDS analysis shows that the lubrication films consist of aluminum titanate and several kinds of titanium oxide formed on rubbing surface with the temperatures elevated. The synergistic action of titanium oxide and aluminum titanate and NiTiO3 in the wear surface at high temperature is responsible for the improving of tribological properties of the composites. |
| Keyword | Ni-based Composite Friction Coefficient Tribological Properties High Temperature |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s11249-015-0491-8 |
| Funding Organization | the National Natural Science Foundation of China (Grant Nos. 50972148;51175490) |
| Indexed By | SCI |
| If | 1.758 |
| Language | 英语 |
| Funding Project | 高温抗磨材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18392 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Wang JY(汪建义) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Wang JY,Shan Y,Guo HJ,et al. The Tribological Properties of NiCr-Al2O3-TiO2 Composites at Elevated Temperatures[J]. Tribology Letters,2015,58(1):1(1-10). |
| APA | Wang JY.,Shan Y.,Guo HJ.,Wang WZ.,Yi GW.,...&汪建义.(2015).The Tribological Properties of NiCr-Al2O3-TiO2 Composites at Elevated Temperatures.Tribology Letters,58(1),1(1-10). |
| MLA | Wang JY,et al."The Tribological Properties of NiCr-Al2O3-TiO2 Composites at Elevated Temperatures".Tribology Letters 58.1(2015):1(1-10). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20151.pdf（8202KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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