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5 Q690钢及焊接接头768 h锈层截面形貌及元素分布

Fig.5 Cross-sectional morphology and element distribution of the rust layer of Q690 steel (a) and welded joint (b) at 768 h