Journal of Materials Research and Technology (Jul 2022)

A comprehensive assessment of the galvanic corrosion behavior of an electrically assisted pressure joint of dissimilar stainless steel alloys under uniaxial tensile stress

  • Sam Yaw Anaman,
  • Shengwei Zhang,
  • Jong-Sook Lee,
  • Hoon-Hwe Cho,
  • Sung-Tae Hong

Journal volume & issue
Vol. 19
pp. 3110 – 3129

Abstract

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The effect of uniaxial tensile stress on the galvanic corrosion behavior of a dissimilar joint of stainless steel alloys is investigated in 0.5 M Na2SO4 electrolyte solution at room temperature. The experimental stress-corrosion test results reveal that the application of uniaxial tensile stress causes a decrease in the corrosion potential and an increase in the corrosion rate compared to the nonstressed specimen. A numerical model is established and validated using the results from the experimental stress-corrosion tests. Consequently, a series of case studies is presented to investigate the galvanic corrosion behavior of the joint under some applied tensile strains.

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