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Citation: Liu Jianhua, Shang Haibo, Wu Hao, et al. Electrochemical characteristics of titanium alloy in engine oil and NaCl solution[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 998-1002. (in Chinese)

Electrochemical characteristics of titanium alloy in engine oil and NaCl solution

  • Received Date: 28 Apr 2004
  • Publish Date: 31 Oct 2004
  • The electrochemical characteristics of a new titanium alloy Ti-6Al-1.5Cr-2Zr in 3# kerosene and 928 lubricating oil with high resistance were studied by using potentiodynamic polarization. The electrochemical properties including the laws of polarization, open-circuit potential, linear polarization resistance and variation of corrosion current were investigated. The corrosion behaviors of titanium alloy were investigated by using immersion method in 3# kerosene and 928 lubricating oil. No visible corrosion appeared in the oil medium. The electrochemical characteristics of the alloy in 3.5% NaCl solution were also studied to compare that in the oil medium. The open-circuit potential was -0.18V, passivation potential was 0.23V, passivation current density was 0.31×10-4A/cm2 in 3.5%NaCl solution and the passivation area potential was in the range of 0.27~1.24V in 3.5% NaCl solution.

     

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