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<p>In this paper, the deep-sea galvanic corrosion behaviors of 10CrNi3MoV high-strength steel and 2205 stainless steel were used a high-pressure simulation device, and influence rules of hydrostatic pressure, temperature, and dissolved oxygen concentration were investigated. Results show the galvanic corrosion rate of the 10CrNi3MoV/2205 coupling initially increases, then decreases with the hydrostatic pressure increasing. The highest corrosion rate is 0.293&#xa0;mm/a at 3&#xa0;MPa, while the lowest rate is 0.173&#xa0;mm/a at 6&#xa0;MPa. Increases in both temperature and dissolved oxygen concentration lead to the higher galvanic corrosion process of the 10CrNi3MoV/2205 coupling, and furthermore result in the case that the corrosion pattern of 10CrNi3MoV high-strength steel transforms from the local corrosion to the uniform corrosion in the simulated deep-sea environment.</p>

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Influences of Deep-Sea Environmental Factors on Galvanic Corrosion of 10CrNi3MoV Steel and 2205 Stainless Steel

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Shaohua Xing,
  • Tigang Duan,
  • Li Ma,
  • Wenshan Peng,
  • Jian Hou

摘要

In this paper, the deep-sea galvanic corrosion behaviors of 10CrNi3MoV high-strength steel and 2205 stainless steel were used a high-pressure simulation device, and influence rules of hydrostatic pressure, temperature, and dissolved oxygen concentration were investigated. Results show the galvanic corrosion rate of the 10CrNi3MoV/2205 coupling initially increases, then decreases with the hydrostatic pressure increasing. The highest corrosion rate is 0.293 mm/a at 3 MPa, while the lowest rate is 0.173 mm/a at 6 MPa. Increases in both temperature and dissolved oxygen concentration lead to the higher galvanic corrosion process of the 10CrNi3MoV/2205 coupling, and furthermore result in the case that the corrosion pattern of 10CrNi3MoV high-strength steel transforms from the local corrosion to the uniform corrosion in the simulated deep-sea environment.