NaHSO3和NaCl对Q235钢大气腐蚀的协同作用
Synergic Effect of NaHSO3 and NaCl on Atmospheric Corrosion of Q235 Steel
通过干/湿复合循环实验模拟大气腐蚀过程，利用腐蚀失重分析以及扫描电镜(SEM)、X射线衍射(XRD)和红外线光谱分析(FTIR)技术，研究了NaHSO3和NaCl的协同作用对Q235钢大气腐蚀的影响。结果表明，NaHSO3和NaCl之间存在协同效应，两者同时存在于环境中时Q235钢的腐蚀失重比单一腐蚀介质存在时的大。腐蚀介质对Q235钢的腐蚀影响顺序为：NaHSO3+NaCl＞NaHSO3＞NaCl。在NaHSO3存在的环境中α-FeOOH易于形成，而在NaCl存在的环境中，γ-Fe2O3和Fe3O4易于形成。
Effect of NaHSO3 coupled with NaCl on the corrosion of Q235 steel in an alternative dry/wet test environment, which aims to simulate atmosphere corrosion, was investigated by SEM, XRD, FTIR and mass loss analysis. The results show that the synergic effect of NaHSO3 and NaCl plays an important role in the corrosion process of Q235 steel. The mass losses are larger in the test environment with the simultaneous presence of NaHSO3 and NaCl rather than either of the two. The corrosivity of corrosive media could be ranked as follows: NaHSO3+NaClNaHSO3NaCl. The presence of NaHSO3 in the test environment could facilitate the formation of corrosion product-FeOOH, while NaCl could facilitate the formation of -Fe2O3 and Fe3O4.
王振尧、苏伟、于全成、吕旺燕
冶金技术钢铁冶炼环境污染、环境污染防治
Q235钢大气腐蚀协同作用加速腐蚀实验
王振尧,苏伟,于全成,吕旺燕.NaHSO3和NaCl对Q235钢大气腐蚀的协同作用[EB/OL].(2023-03-31)[2025-08-02].https://chinaxiv.org/abs/202303.10584.点此复制
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