Effects of phosphate binder on the lubricity and wear resistance of graphite coating at elevated temperatures | |
Department | 先进润滑与防护材料研究发展中心 |
Jia YL(贾玉龙)1,2; Wan HQ(万宏启)1; Chen L(陈磊)1; Zhou HD(周惠娣)1; Chen JM(陈建敏)1; Chen L(陈磊); Chen JM(陈建敏) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Surface and Coatings Technology |
ISSN | 0257-8972 |
Volume | 315Pages:490-497 |
Abstract | To achieve a kind of graphite-based bonded solid lubricating coating with excellent lubricity at high temperature, a graphite coating was fabricated on Inconel 718 substrate using a binder of aluminum chromium phosphate (ACP). The sliding friction and wear behavior of the coatings was evaluated by a reciprocating alumina ball-on-flat specimen geometry from room temperature (RT) to 700 °C. The structures and morphologies of the graphite phosphate coating were analyzed by X-ray diffraction, Fourier transform infrared spectrometry, X-ray photoelectron spectroscopy, Raman spectroscopy and scanning electron microscopy. The graphite phosphate coating exhibited stable and low friction coefficients from RT to 700 °C, except for the range of 200–300 °C. Results are explained on the basis of a reaction between phosphorus in the ACP binder and the dangling covalent bonds of the graphite to prevent its oxidation. Simultaneously, the elimination of adsorbed water vapor and the presence of a large degree of crystal defects in the graphite are responsible for the failure of the graphite phosphate coating at 200–300 °C. As a result, the wear mechanism of graphite phosphate coating at elevated temperatures is particularly analyzed and discussed in this work. |
Keyword | Phosphate Binder Graphite High Temperature Lubricity Tribological Properties |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.surfcoat.2017.03.013 |
Funding Organization | the National Natural Science Foundation of China (Grant no. 51175491) |
Indexed By | SCI |
If | 2.589 |
Language | 英语 |
Funding Project | 磨损与表面工程研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21802 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Chen L(陈磊); Chen JM(陈建敏) |
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 100049, Peoples R China |
Recommended Citation GB/T 7714 | Jia YL,Wan HQ,Chen L,et al. Effects of phosphate binder on the lubricity and wear resistance of graphite coating at elevated temperatures[J]. Surface and Coatings Technology,2017,315:490-497. |
APA | Jia YL.,Wan HQ.,Chen L.,Zhou HD.,Chen JM.,...&陈建敏.(2017).Effects of phosphate binder on the lubricity and wear resistance of graphite coating at elevated temperatures.Surface and Coatings Technology,315,490-497. |
MLA | Jia YL,et al."Effects of phosphate binder on the lubricity and wear resistance of graphite coating at elevated temperatures".Surface and Coatings Technology 315(2017):490-497. |
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1-s2.0-S025789721730(1789KB) | 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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