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Corrosion Resistance of QPQ Treated N80 Steel Pipe Used in Oil Field
Author(s): 
Pages: 46-49
Year: Issue:  2
Journal: HEAT TREATMENT OF METALS

Keyword:  QPQ处理N80钢石油管道抗腐蚀性能;
Abstract: 通过对N80石油管用钢的未处理试样、盐浴渗氮试样和QPQ处理试样进行过氧化氢溶液浸泡试验、含CO2蒸馏水和油田模拟水溶液的高压釜腐蚀试验比较,探讨了QPQ技术在石油管道防腐中应用的可能性.结果发现在由吸氧动力学所控制的含氧溶液中,QPQ处理的试样抗蚀性最好;在析氢动力学所控制的无氧溶液中,QPQ处理的试样腐蚀速率远低于未处理试样,和渗氮试样的腐蚀速率基本一致.综合考虑,QPQ处理试样在油田环境中的使用效果大大好于渗氮试样和未处理试样.
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