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Effect of microstructure on corrosion resistance of anodic oxidation coatings on TA2 commercially pure titanium in sodium tartrate solution
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Faculty of Material Science and Engineering, Kunming University of Science and Technology,National Engineering Research Center of solid waste resource, Kunming University of Science and Technology,Faculty of Material Science and Engineering, Kunming University of Science and Technology,,,,

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TB332

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    Abstract:

    Anodic oxide films on TA2 commercially pure titanium surface were prepared with sodium tartrate environmental solution by potentiostatic method at the concentrations of 1, 5, 15, 30 and 50 g/L. The microstructure of the films was analyzed by atomic force microscope, the Tafel polarization curves and electrochemical impedance spectra of the samples at low potential of 3.5% NaCl were analyzed by electrochemical workstation, and the influence of microstructure on corrosion resistance wsa discussed. The results show that when the concentration is about 15 g/L, the oxide film has a good micro morphology, broad passivation area, maximum polarization resistance value, smaller passivation current and self corrosion current, is the best process conditions.

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[Yang Yanrong, Yu Xiaohua, Zhan Zhaolin, Cui Changxing, Fu Tianlin, Zhang Guanqun, Liu Jianxiong. Effect of microstructure on corrosion resistance of anodic oxidation coatings on TA2 commercially pure titanium in sodium tartrate solution[J]. Rare Metal Materials and Engineering,2017,46(5):1283~1287.]
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History
  • Received:May 30,2016
  • Revised:June 29,2016
  • Adopted:July 15,2016
  • Online: September 27,2017
  • Published: