Q690贝氏体桥梁钢焊接接头在模拟乡村大气中耐蚀性能研究

王昕煜, 黄峰, 刘海霞, 袁玮, 刘静

Corrosion Resistance of Welded Joints of Q690 Bainite Bridge Steel in Simulated Rural Atmosphere

WANG Xinyu, HUANG Feng, LIU Haixia, YUAN Wei, LIU Jing

图4 在不同周浸时间后Q690钢及其焊接接头试样表面宏观形貌

Fig.4 Macro morphologies of the surface of Q690 steel (a, c) and Q690 steel welded joint (b, d) samples after different immersion times rusted sample (a, b) and de-rusted sample (c, d)