| Friction and Wear Characteristics of Hot-Pressed NiCr-Mo/MoO3/Ag Self-Lubrication Composites at Elevated Temperatures up to 900 ℃ | |
| 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)1,2; Li B(李博)1; Wang WZ(王文珍)1; Jia JH(贾均红)1; Jia JH(贾均红)
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| 2015 | |
| Source Publication | Tribology Letters
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| ISSN | 1023-8883 |
| Volume | 59Issue:3Pages:48(1-16) |
| Abstract | NiCr-based high-temperature self-lubricating composites with Ag/Mo/Ag–MoO3/Ag–Mo were prepared by the powder metallurgy method, respectively. The mechanical and tribological properties of the composites rubbing against alumina balls were investigated from room temperature to 900 ℃. The tribo-chemical reaction films formed on the sliding surface and their effects on the tribological properties of composites at different temperatures were analyzed by SEM and Micro-Raman. The results showed that the triboloical properties of NiCr-based composites were improved by adding alloying elements or a solid lubricating phase; meanwhile, the composites containing Ag–MoO3 or Ag–Mo exhibited even better triboloical properties than those with Mo or Ag at high temperatures. The lowest friction coefficient of the NCr–MoO3–Ag composite is around 0.19 and that of the NiCr–Mo–Ag composite is around 0.20; both composites exhibited an optimal wear rate in the order of magnitude of 10−6 mm3 N−1 m−1 at high temperatures. XRD and Micro-Raman results indicated that the composition of the tribo-layers formed on the worn surface of the composites varies with different testing temperatures. Compounds such as Ag2MoO4, NiCr2O4 and NiO, which formed on the rubbing surface at high temperature, worked synergistically to improve the tribological properties of the NiCr-based composite at high temperatures. |
| Keyword | Nicr-based Composite Tribological Properties High Temperature Tribo-chemical Reaction |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s11249-015-0574-6 |
| Funding Organization | the National Natural Science Foundation of China (Grant Nos. 50972148;51471181;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/362003/18592 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Jia JH(贾均红) |
| 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. Friction and Wear Characteristics of Hot-Pressed NiCr-Mo/MoO3/Ag Self-Lubrication Composites at Elevated Temperatures up to 900 ℃[J]. Tribology Letters,2015,59(3):48(1-16). |
| APA | Wang JY.,Shan Y.,Guo HJ.,Li B.,Wang WZ.,...&贾均红.(2015).Friction and Wear Characteristics of Hot-Pressed NiCr-Mo/MoO3/Ag Self-Lubrication Composites at Elevated Temperatures up to 900 ℃.Tribology Letters,59(3),48(1-16). |
| MLA | Wang JY,et al."Friction and Wear Characteristics of Hot-Pressed NiCr-Mo/MoO3/Ag Self-Lubrication Composites at Elevated Temperatures up to 900 ℃".Tribology Letters 59.3(2015):48(1-16). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 201548.pdf（6644KB） | 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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