Volume 37 Issue 1
Jun.  2022
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Article Navigation >  Development and Application of Materials  > 2022  >  37(1): 12-16,20
SUN Jihong, MAO Liuwei, ZHAO Mingyu, SONG Qingyuan, DU Du. Effects of Hydrostatic Pressure and Cathodic Polarization on Stress Corrosion of Titanium Alloy in Seawater[J]. Development and Application of Materials, 2022, 37(1): 12-16,20.
Citation: SUN Jihong, MAO Liuwei, ZHAO Mingyu, SONG Qingyuan, DU Du. Effects of Hydrostatic Pressure and Cathodic Polarization on Stress Corrosion of Titanium Alloy in Seawater[J]. Development and Application of Materials, 2022, 37(1): 12-16,20.
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Effects of Hydrostatic Pressure and Cathodic Polarization on Stress Corrosion of Titanium Alloy in Seawater

  • 1. No. 92578 Army of the People's Liberation Army of China, Beijing 100071, China;

  • 2. Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Institute, Qingdao 266237, China

  • Received Date: 2021-04-25
    Available Online: 2022-06-11
    Abstract
  • The effects of hydrostatic pressure and cathodic polarization on stress corrosion of Ti75 alloy are studied by electrochemical polarization test, slow rate test(SSRT), fracture morphology observation and constant deformation stress corrosion test.Resultsshow that hydrostatic pressure has no obvious effect on stress corrosion sensitivity of Ti75 alloy. Under the circumstance of cathodic polarization, the critical stress intensity factor of stress corrosion(KISCC) of Ti75 alloy decreases, and the stress corrosion sensitivity increases with the negative shift of the potential. The critical cathodic polarization potential of hydrogen induced stress corrosion is-0.77 V.

     

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