通过扫描电镜观察及X射线衍射分析，研究X52钢在模 拟输送管腐蚀环境条件下的腐蚀行为.结果表明，X52钢的平均腐蚀速率为06289 mm/a ，其表面形成三层形貌及成分各异的腐蚀产物，三层膜中主要的腐蚀产物均是FeCO3和Fe 2O3，宏观腐蚀形态基本为均匀腐蚀，但是在扫描电镜下观察到金属遭受的破坏以局部 腐蚀为主.
Corrosion behaviour of X52 steel in a simulated pipeline environment was studied by scanning electron microscope and Xray diffraction analysis.The results sho wed that uniform corrosion rate of X52 in the experimental condition was 062 89 mm/a.The corrosion product scales of three layers, which had different imag es and chemical compositions was formed on the surface of corroded coupon.The ma in corrosion products were FeCO3 and Fe2O3. The morphology of Corroded cou ple shows characteristics of uniform corrosion macroscopically however that of l ocalized corrosion microscopically.
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