| Tribological Properties of Adaptive Ni-Based Composites with Addition of Lubricious Ag2MoO4 at Elevated Temperatures | |
| Department | 固体润滑国家重点实验室 |
Liu EY(刘二勇)1,2; Wang WZ(王文珍)1 ; Gao YM(高义民)2; Jia JH(贾均红)1; Jia JH(贾均红)
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| 2012 | |
| Source Publication | Tribology Letters
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| ISSN | 1023-8883 |
| Volume | 47Issue:1Pages:21-30 |
| Abstract | The Ni-based self-lubricating composites with addition of 10 and 20 wt% Ag2MoO4 were fabricated by powder metallurgy technique, and the effect of Ag2MoO4 on tribological properties was investigated from room temperature to 700 °C. The tribo-chemical reaction films formed on rubbing surface and their effects on the tribological properties of composites at different temperatures were addressed according to the surface characterization by SEM and Micro-Raman. The results show that the Ag2MoO4 decomposed into Ag and Mo during the high-temperature fabrication process. The friction coefficient and wear rate of the composites decrease with the increasing of temperature and Ag2MoO4 contents and the composites with addition of 20 wt% Ag2MoO4 exhibits the lowest friction coefficient (0.26) and wear rate (1.02 × 10−5 mm3 N−1 m−1) at 700 °C. The composition of the tribo-layers on the worn surfaces of the composites is varied at different temperatures. It is proposed that the improving of tribological properties of the composites at high temperatures are attributed to the synergistic lubricating effect of silver molybdate (reproduced in the rubbing process at high temperatures) and Fe oxide (transfer from disk material to the pin) formed on the worn surface. |
| Keyword | Self-lubricating Composites Silver Molybdate Tribological Property High Temperature |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s11249-012-9958-z |
| Funding Organization | the National Natural Science Foundation of China (Grant No. 50972148;51175490);the “Hundred Talents Program” of Chinese Academy of Sciences (Grant No. KGCX2-YW-804) |
| Indexed By | SCI |
| If | 1.743 |
| 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/362003/3508 |
| 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.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Mat Sci & Engn, Xian 710049, Peoples R China |
| Recommended Citation GB/T 7714 | Liu EY,Wang WZ,Gao YM,et al. Tribological Properties of Adaptive Ni-Based Composites with Addition of Lubricious Ag2MoO4 at Elevated Temperatures[J]. Tribology Letters,2012,47(1):21-30. |
| APA | Liu EY,Wang WZ,Gao YM,Jia JH,&贾均红.(2012).Tribological Properties of Adaptive Ni-Based Composites with Addition of Lubricious Ag2MoO4 at Elevated Temperatures.Tribology Letters,47(1),21-30. |
| MLA | Liu EY,et al."Tribological Properties of Adaptive Ni-Based Composites with Addition of Lubricious Ag2MoO4 at Elevated Temperatures".Tribology Letters 47.1(2012):21-30. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 21-30.PDF（1228KB） | 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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