带氧化皮Q345q钢在模拟西北典型大气环境中的腐蚀行为研究

张延文,郭铁明,宋志涛,南雪丽,徐秀杰,董志林

Corrosion Behavior of Q345q Steel with Oxide Scale in Simulated Typical Atmospheric Environmentin Northwest China

Yanwen ZHANG,Tieming GUO,Zhitao SONG,Xueli NAN,Xiujie XU,Zhilin DONG

表2 三种腐蚀溶液的成分

Table2 Compositions of three corrosion solutions

Corrosion solution Composition pH GB Mixed solution Deicing salt+0.01 mol/L NaHSO3 4.8±0.2 - Deicing salt Na2SO4 0.500±0.002 g 9±0.2 GB/T 19746-2005 Na2SO3 0.250±0.002 g Na2S2O3 0.100±0.002 g NaCl 52.5±1 g CaCl2·2H2O 52.5±1 g NaHSO3 0.01 mol/LNaHSO3 4.4±0.2 TB/T2375-1993