利用正交实验研究了盐水中离子和温度对钻具钢（G105）腐蚀速率的影响，扫描电子显微镜（SEM）对腐蚀产物膜和去除腐蚀产物后的基体形貌进行观察分析，用X-射线衍射（XRD）分析腐蚀产物物相结构.结果表明，对腐蚀速率影响顺序为Cl->温度>Ca2+>Mg2+>Br-.G105钢在复合盐水中为均匀腐蚀，腐蚀产物为β-FeOOH.
Influence of ions on corrosion of G105 steel in saltwaters was studied using orthogonal experiment.XRD and SEM were adopted to examine corrosion products formed on the surface.The results showed that the order of influence of ions on the corrosion of G105 steel was as the following:Cl->Temperature>Ca2+>Mg2+>Br-.XRD studies revealed that there was β-FeOOH existed in the corrosion product scale.
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