Journal
SURFACE & COATINGS TECHNOLOGY
Volume 214, Issue -, Pages 124-130Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2012.10.079
Keywords
Titanium alloy; Plasma electrolytic oxidation; Oxide coating; MoS2; Friction and wear
Funding
- Hundred Talents Program of Chinese Academy of Sciences
- Graduate Student Innovation Special Foundation Jiangxi province [YC2011-S078]
- National Natural Science Foundation of China [51005075]
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A MoS2-containing oxide coating on Ti6A14V alloy was prepared by one-step plasma electrolytic oxidation (PEO) process in a MoS2-dispersed phosphate electrolyte. The composition and microstructure of the oxide coatings produced in the electrolytes with and without the addition of MoS2 were analyzed by X-ray diffractometer (XRD), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). Results showed that the MoS2 particles can be successfully incorporated into the oxide coating during the PEO process and were preferentially located in the micropores. The ball-on-disk sliding tests indicated that MoS2-containing oxide coating registered much lower friction coefficient and wear rate than the oxide coating without MoS2 under dry sliding condition. The improved tribological property of the MoS2-containing oxide coating was also discussed. (C) 2012 Elsevier B.V. All rights reserved.
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