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The Influence of SiC Nanoparticles on the Microstructure and Corrosion Behavior of Microarc Oxidation Coatings Formed on TA2 Alloy
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National Center of Material Service Safety,University of Science and Technology Beijing

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TG561

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    Abstract:

    In order to improve the anti-corrosion and anti-wear properties of titanium alloy, a microarc oxidation (MAO) coating was fabricated on the surface of TA2 alloy. The influences of SiC nanoparticles on the microstructure and corrosion behavior of MAO coatings were investigated. The results showed that the introduction of SiC nanoparticles into the base electrolyte increased the coating thickness of MAO coating. The thickness, surface roughness and micropore size of the coating increased with the increasing applied voltage. The microcracks in the coating was decreased by SiC particles. The phase composition of coatings consisted of rutile phase, anatase phase, SiC and SiO2. The OCP and corrosion potential was increased by MAO treatment. The introduction of SiC nanoparticles decreased the anodic current density, and thus increased the corrosion property of the alloy.

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[Yang Bin, Li Jingyang, Shi Kaiyuan, Wang Zhiwei, Wen Lei. The Influence of SiC Nanoparticles on the Microstructure and Corrosion Behavior of Microarc Oxidation Coatings Formed on TA2 Alloy[J]. Rare Metal Materials and Engineering,2018,47(12):3754~3760.]
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History
  • Received:February 06,2018
  • Revised:February 26,2018
  • Adopted:May 18,2018
  • Online: January 04,2019
  • Published: