Heat Treatment of Metals ›› 2021, Vol. 46 ›› Issue (11): 126-130.DOI: 10.13251/j.issn.0254-6051.2021.11.019

• PROCESS RESEARCH • Previous Articles     Next Articles

Effect of MAO voltage on friction and wear properties of TC4 alloy oxide film

Yu Guoqing1, Jing Ran1,2, Wang Guodi1, Zhang Manxue1, Feng Tian1, Xie Niansuo1,2   

  1. 1. School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong Shaanxi 723000, China;
    2. National & Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, Shaanxi University of Technology, Hanzhong Shaanxi 723000, China
  • Received:2021-06-06 Online:2021-11-25 Published:2021-12-08

Abstract: Effect of micro-arc oxidation(MAO) voltage on friction and wear properties of the TC4 alloy oxide film prepared via MAO technology was studied. The morphology, phase composition, hardness and friction and wear properties of the oxide film were tested by means of laser confocal microscope, scanning electron microscope, X-ray diffractometer, micro-hardness tester and high temperature vacuum friction and wear tester. The results show that with the MAO voltage increasing, the content of Anatase-TiO2 and Rutile-TiO2 in the MAO-TC4 alloy surface oxide film increases, and the surface roughness, microhardness and average friction coefficient of the oxide film also increase, while the wear rate of which first decreases and then increases. When the MAO voltage is 280 V, the optimum friction and wear property of the MAO-TC4 alloy oxide film is obtained, with the minimum wear rate of 2.8 mg/cm2.

Key words: micro-arc oxidation(MAO), TC4 titanium alloy, friction and wear properties

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