除冰盐环境下桥梁钢的耐腐蚀性能研究

李琳, 陈义庆, 高鹏, 艾芳芳, 钟彬, 伞宏宇, 杨颖

Corrosion Resistance of Various Bridge Steels in Deicing Salt Environments

LI Lin, CHEN Yiqing, GAO Peng, AI Fangfang, ZHONG Bin, SAN Hongyu, YANG Ying

表4 干湿交替腐蚀产物物相组成 (mass fraction / %)

Table 4 Phase composition of corrosion product after dry-wet cyclic corrosion test

Sample α-FeOOH β-FeOOH γ-FeOOH CaCO3 Fe3O4 NaCl Q345qENH-2 d 6 21 42 31 --- --- Q345qENH-32 d 16 35 6 18 20 5 Q420qENH-2 d 7 18 45 30 --- --- Q420qENH-32 d 10 44 7 --- 31 8 Q345qE-2 d 7 18 44 31 --- --- Q345qE-32 d 7.9 18.8 9.9 23.8 33.7 5.9