| Microstructure, phase transition and tribological performances of Ni3Si-based self-lubricating composite coatings | |
| Department | 固体润滑国家重点实验室 |
Niu MY(牛牧野)1,2 ; Bi QL(毕秦岭)1; Zhu SY(朱圣宇)1; Yang J(杨军)1; Liu WM(刘维民)1; Bi QL(毕秦岭)
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| 2013 | |
| Source Publication | Journal of Alloys and Compounds
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| ISSN | 0925-8388 |
| Volume | 555Pages:367-374 |
| Abstract | Ni3Si-based composite coatings with various contents of MoS2 and BaF2/CaF2 were prepared by hot-pressed sintering. The effects of MoS2 and BaF2/CaF2 on mechanical and tribology properties of the coatings were evaluated in the temperature range of 25–800 ℃, respectively. The results showed that MoS2 decomposes to Mo2S3 during the fabricating process, and Ni31Si12 phase was formed when the hot-pressing temperature rising up to 1050 ℃. The coatings had high friction coefficients below 200 ℃ because of the decomposition of MoS2. It is interesting to note that the Ni31Si12 phase in all of the coatings is fully transformed to Ni3Si at 800 ℃ during the friction process. The coating containing 15 wt.% MoS2 and 10 wt.% BaF2/CaF2 exhibited the lowest friction coefficient when the temperature exceeded 400 ℃. A glaze layer was formed on the worn surface at higher temperature. XRD results showed that the worn surface of the coating contained BaMoO4, CaMoO4, and NiMoO4 at 800 ℃, and these oxides act as effective lubricants at this temperature. The synergistic action of the oxides is responsible for the reduction of the friction. |
| Keyword | Coating Materials Intermetallics Powder Metallurgy Phase Transitions X-ray Diffraction |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.jallcom.2012.12.079 |
| Funding Organization | the National Natural Science Foundation of China (51075383);the National 973 Project (2013CB632300) |
| Indexed By | SCI |
| If | 2.726 |
| 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/362003/4275 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Bi QL(毕秦岭) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Niu MY,Bi QL,Zhu SY,et al. Microstructure, phase transition and tribological performances of Ni3Si-based self-lubricating composite coatings[J]. Journal of Alloys and Compounds,2013,555:367-374. |
| APA | Niu MY,Bi QL,Zhu SY,Yang J,Liu WM,&毕秦岭.(2013).Microstructure, phase transition and tribological performances of Ni3Si-based self-lubricating composite coatings.Journal of Alloys and Compounds,555,367-374. |
| MLA | Niu MY,et al."Microstructure, phase transition and tribological performances of Ni3Si-based self-lubricating composite coatings".Journal of Alloys and Compounds 555(2013):367-374. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 牛牧野Microstructure, p（2581KB） | 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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