Experimental Study on Friction Characteristics of Micro-Arc Oxidation Modified Layer on Titanium Alloy Surface

Abstract:

In order to study the effect of microarc oxidation modification treatment on the friction properties of titanium alloy surface, the surface treatment layer of Ti-6Al-4V ELI specimen modified by Microarc oxidation surface was sampled, the surface layer hardness, roughness and treatment layer thickness were tested, the microscopic morphology was analyzed, The friction tests of TC4 substrate and micro-arc oxidation treatment surface disc with 25% glass fiber, 15% fiberglass +5% graphite and 60% tin bronze reinforced PTFE pin were carried out, and the results showed that the thickness increased slightly and the surface layer hardness increased by about 75% after the micro-arc oxidation surface modification treatment. Compared with the substrate, the surface roughness is obviously improved, and the friction coefficient of the surface treatment specimen is similar to that of the TC4 titanium alloy substrate, but the wear amount is higher than that of the TC4 titanium alloy substrate.

• Periodical: Materials Science Forum (Volume 990)
• Pages: 44-49
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.990.44
• Online since: May 2020
• Authors: Xing Sheng Lao, Xu Feng Zhao, Yong Liu, Chun Hui Dai, Wei Jian Lv*
• Keywords: Friction Properties, Microarc Oxidation, Modification, Titanium Alloy

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