高强铝合金焊接接头力学-电化学腐蚀行为与退化规律研究

胡娜, 彭文山, 郭为民, 刘天楠, 段体岗, 刘少通

Mechanical-electrochemical Corrosion Behavior and Degradation Regularity of High Strength Al-alloy Welded Joints

HU Na, PENG Wenshan, GUO Weimin, LIU Tiannan, DUAN Tigang, LIU Shaotong

表4 不同应力下铝合金焊接接头在低温海水中浸泡不同周期后的拉伸数据

Table 4 Tensile data of the welded joint immersed in low-temperature seawater under different conditions of applied stress and immersion time

Immersion time / d Pre-stress Yield strength / MPa Tensile strength / MPa 1 25%σs 211 270 50%σs 175 225 5 25%σs 163 241 50%σs 150 220 15 25%σs 150 218 50%σs 145 178