采用高温高压釜实验研究了高硫高酸值原油温度对1Cr5Mo钢腐蚀速率的影响.利用扫描电镜和能谱技术观察并测试了腐蚀产物膜的微观形貌和产物膜的化学组成.利用电化学测试方法测试了带膜试样腐蚀电化学行为.结果表明,原油温度低于473 K时,1Cr5Mo钢主要腐蚀机理为环烷酸腐蚀,腐蚀速率增加缓慢；原油温度高于473 K时,1Cr5Mo钢主要腐蚀机理为环烷酸腐蚀、硫腐蚀,腐蚀速率迅速增加.当原油温度不大于513 K时,随原油温度增加,腐蚀产物膜渐趋完整,1Cr5Mo钢自腐蚀电流密度不断下降；当原油温度达到553 K时,产物膜变成疏松絮状结构,自腐蚀电流显著增加.
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