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中文摘要：
在含有不同浓度HCO3-的库尔勒模拟溶液中对X70钢楔形缝隙模拟构型进行缝隙腐蚀实验。实验结果表明,缝隙腐蚀理论不仅仅适用于单离子的溶液体系,也同样适用于含有多离子的溶液。实验过程中,当缝隙腐蚀发生时,从缝隙开口处到缝隙深处腐蚀电位越来越低,Cl-向缝隙内富集,pH值降低。HCO3-的加入对缝隙电位、Cl-浓度、pH值都有较大的影响。
英文摘要：
The crevice corrosion behavior of X70 steel was studied in the Ku'erle simulated solution of various HCO3- concentrations by using a wedge-shaped crevice model.The results showed:classical crevice corrosion theory was adequate for the solution system not only containing single ion but also including several ions.In this study,when crevice corrosion happened the self-corrosion potential decreased gradually from the opening side to bottom side,Cl-concentration of the solution increased and pH value decreased ...
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