Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy | |
Department | 固体润滑国家重点实验室 |
Lu C(鲁成)1,2; Jia JH(贾均红) | |
The second department | lsl210 |
2019-02 | |
Source Publication | Surface and Coatings Technology |
Issue | 364Pages:127-134 |
Abstract | Self-lubricating polytetrafluoroethylene-containing PEO (PEO-PTFE) composite coatings were prepared by vacuum impregnation on plasma electrolytic oxidized aluminum alloy with different cathodic voltages. The topography, microstructure and composition of the composite coatings were investigated by FESEM equipped with EDX and XRD. The friction and wear properties were evaluated in the load range of 5–20 N using a reciprocating tribometer. The results show that the tribological properties of PEO-PTFE composite coatings are greatly influenced by the surface microstructure of PEO coating. The PEO coating fabricated at 150 V cathodic voltage shows coarser microstructure, while the corresponding PEO-PTFE composite coating registers superior self-lubricated property with lowest friction coefficient of 0.1 and 0.09 under the applied loads of 5 N and 10 N, respectively. In term of wear resistance ability, the 90 V composite coating possesses relatively low wear rate about 7.47 × 10-6 mm3·(N·m)-1 with the coefficient of 0.13 under the test load of 10 N. The increased microcracks and diameter of micropores, like “grooves” and “ridges” on PEO coating, is beneficial for providing the scope for low-lubricating PTFE material, which can form smooth lubricating film during the friction process. |
Indexed By | SCI |
If | 3.192 |
Language | 英语 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/26015 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Jia JH(贾均红) |
Affiliation | 1.中国科学院兰州化学物理研究所 2.中国科学院大学 |
Recommended Citation GB/T 7714 | Lu C,Jia JH. Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy[J]. Surface and Coatings Technology,2019(364):127-134. |
APA | Lu C,&Jia JH.(2019).Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy.Surface and Coatings Technology(364),127-134. |
MLA | Lu C,et al."Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy".Surface and Coatings Technology .364(2019):127-134. |
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File Name/Size | DocType | Version | Access | License | ||
Influence of surface(4145KB) | 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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