(Attention for corrosion science, the abstract must not exceed more than 100 words)

In this research, first a multi-analytical approach was carried out to propose a mechanistic model for the formation of the thermal oxide film on low Cr stainless steel. It describes the effects of kinetically and thermodynamically driven phenomena on the growth of a Fe-Cr complex oxide film at 950℃. Second, the behavior of the thermal oxide film in the presence of fluoride ions, as a relevant pickling agent in conversion treatment, was investigated. It was shown that fluoride ions enter the oxide film and form a complex with Fe and preferentially dissolve hematite islands through a complexation mechanism.

（注意腐蚀科学，摘要不得超过100个字）

在这项研究中，首先进行了多种分析方法，提出了一种在低Cr不锈钢上形成热氧化膜的机理模型。它描述了在950℃下动力学和热力学驱动现象对Fe-Cr复合氧化物膜生长的影响。其次，研究了在氟离子存在下热氧化膜作为转化处理中相关酸洗剂的行为。结果表明，氟离子进入氧化膜并与铁形成络合物，并通过络合机理优先溶解赤铁矿岛。