IMR OpenIR
Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy
Lu, Cheng; Feng, Xiaochun; Yang, Jingjing; Jia, Junhong; Yi, Gewen; Xie, Erqing; Sun, Yuan
2019-04-25
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume364Pages:127-134
AbstractSelf-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 x 10(-6) mm(3).(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.
KeywordAluminum alloy Microstructure PTFE Tribological behavior
Indexed BySCI
Language英语
WOS IDWOS:000463302800014
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81168
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Lu, Cheng,Feng, Xiaochun,Yang, Jingjing,et al. Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy[J]. SURFACE & COATINGS TECHNOLOGY,2019,364:127-134.
APA Lu, Cheng.,Feng, Xiaochun.,Yang, Jingjing.,Jia, Junhong.,Yi, Gewen.,...&Sun, Yuan.(2019).Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy.SURFACE & COATINGS TECHNOLOGY,364,127-134.
MLA Lu, Cheng,et al."Influence of surface microstructure on tribological properties of PEO-PTFE coating formed on aluminum alloy".SURFACE & COATINGS TECHNOLOGY 364(2019):127-134.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lu, Cheng]'s Articles
[Feng, Xiaochun]'s Articles
[Yang, Jingjing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lu, Cheng]'s Articles
[Feng, Xiaochun]'s Articles
[Yang, Jingjing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lu, Cheng]'s Articles
[Feng, Xiaochun]'s Articles
[Yang, Jingjing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.