Influence of temperature and hydrostatic pressure on the galvanic corrosion between 90/10 Cu–Ni and AISI 316L stainless steel

Journal of Materials Research and Technology

卷:13

Fuhui Wang¹  Rui Liu²  Yu Cui³  Li Liu⁴  Shengbo Hu⁴ 

[1] Corresponding author.;

[2] The Key Lab of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, China;

[3] Key Laboratory for Anisotropy and Texture of Materials (MoE), School of Materials Science and Engineering, Northeastern University, NO.3-11, Wenhua Road, Heping District, Shenyang, Liaoning, 110819, China;

[4] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wencui Road 62, Shenyang, 110016, China;

关键词: Alloy;    Galvanic corrosion;    Hydrostatic pressure;    EIS;   

DOI  :  

来源: DOAJ

【 摘 要 】

The galvanic corrosion behavior of the 90/10 Cu–Ni alloy coupled to AISI 316L stainless steel, has been studied at different temperatures (5, 15 and 30 °C) and hydrostatic pressures (0.1, 10 and 20 MPa) by electrochemical and SEM methods. Results show that both the increasing temperature and hydrostatic pressure display an accelerating effect on the self-corrosion of 90/10 Cu–Ni. When coupled to AISI 316L stainless steel, 90/10 Cu–Ni alloy works as the anodic part. Galvanic corrosion current density increases with increasing temperature and decreases with increasing hydrostatic pressure. The independent effect of temperature and hydrostatic pressure on the galvanic corrosion process has been found. The effect of temperature on the galvanic corrosion process, which follows the Arrehenius equation, was found to be more influential than that of hydrostatic pressure. A potential relation concerning both the influence of the temperature and the hydrostatic pressure on the corrosion and galvanic corrosion current densities of 90/10 Cu–Ni has been set up.

【 授权许可】

Unknown