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Effects of Texture Density on the Tribological Properties of Plasma Electrolytic Oxidation/Polytetrafluoroethylene Coatings Formed on Aluminum Alloys
Lu, Cheng1; Ding, Jinhua2; Shi, Peiying3; Jia, Junhong4; Xie, Erqing5; Sun, Yuan6
Corresponding AuthorLu, Cheng(lucheng@sdut.edu.cn) ; Jia, Junhong(jhjia@sust.edu.cn)
2021-11-16
Source PublicationMACROMOLECULAR MATERIALS AND ENGINEERING
ISSN1438-7492
Pages10
AbstractPlasma electrolytic oxidation (PEO) coatings are commonly used as protective materials in the automotive industry. In this study, textured PEO coatings with different densities of dimples are fabricated by laser surface texturing, which is followed by coating with self-lubricating polytetrafluoroethylene (PTFE) material by vacuum penetration. The topographies, microstructures, and tribological properties of the textured PEO/PTFE coatings are investigated. The results show that the texture densities have a significant effect on the tribological properties of composite PEO/PTFE coatings. The composite coating with a texture density of 39.7% shows a stable and low friction coefficient of approximate to 0.11 under test loads ranging from 5 to 20 N. In addition, this coating exhibits better carrying capacity than other textured coatings during the friction process. With the increase in dimple area density, the storage capacity of the composite coating increases, and is accompanied by a decreased load-bearing capacity. This leads to further contact with the friction interface, which is beneficial to lubrication. An ideal balance between the physical support of the PEO coating and the lubricating effect of the PTFE film is achieved.
Keywordplasma electrolytic oxidation polytetrafluoroethylene texture density tribological properties
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; State Key Laboratory of Solid Lubrication
DOI10.1002/mame.202100678
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51675508] ; National Natural Science Foundation of China[51575505] ; Natural Science Foundation of Shandong Province[ZR202103020570] ; Natural Science Foundation of Shandong Province[ZR202102270274] ; State Key Laboratory of Solid Lubrication[LSL-1610]
WOS Research AreaMaterials Science ; Polymer Science
WOS SubjectMaterials Science, Multidisciplinary ; Polymer Science
WOS IDWOS:000719149900001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167460
Collection中国科学院金属研究所
Corresponding AuthorLu, Cheng; Jia, Junhong
Affiliation1.Shandong Univ Technol, Sch Phys & Optoelect Engn, Zibo 255049, Peoples R China
2.Shandong Univ Technol, Sch Mech Engn, Zibo 255000, Peoples R China
3.Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
4.Shaanxi Univ Sci & Technol, Coll Mech & Elect Engn, Xian 710021, Peoples R China
5.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
6.Chinese Acad Sci, Dept Superalloys, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Lu, Cheng,Ding, Jinhua,Shi, Peiying,et al. Effects of Texture Density on the Tribological Properties of Plasma Electrolytic Oxidation/Polytetrafluoroethylene Coatings Formed on Aluminum Alloys[J]. MACROMOLECULAR MATERIALS AND ENGINEERING,2021:10.
APA Lu, Cheng,Ding, Jinhua,Shi, Peiying,Jia, Junhong,Xie, Erqing,&Sun, Yuan.(2021).Effects of Texture Density on the Tribological Properties of Plasma Electrolytic Oxidation/Polytetrafluoroethylene Coatings Formed on Aluminum Alloys.MACROMOLECULAR MATERIALS AND ENGINEERING,10.
MLA Lu, Cheng,et al."Effects of Texture Density on the Tribological Properties of Plasma Electrolytic Oxidation/Polytetrafluoroethylene Coatings Formed on Aluminum Alloys".MACROMOLECULAR MATERIALS AND ENGINEERING (2021):10.
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