【摘要】 针对某公司材质为316L的设备在高温氯气中的腐蚀失效问题,采用宏观检查并利用XRD,SEM,EDS等技术,分析腐蚀部位的微观组织和成分,对设备的腐蚀原因进行研究。结果表明:设备在高温氯气中,氯气与316L中的合金元素发生反应,生成氯化物附着在壁面处,因此造成氧化膜的破坏及设备腐蚀。最终通过分析得出了腐蚀产物组成成分,并找出了造成腐蚀的原因。更多还原

【Abstract】 In the light of the corrosion problem of a 316 L equipment in high temperature chlorine gas,the corroded part of the equipment was observed visually,and the microstructure and composition were analyzed by SEM,EDS and XRD. The results showed that the elements in the alloy can react with Cl2 in the high temperature,and the chloride was attached to the wall,which caused the damage of the oxide film and lead the equipment to corrode. The components of corrosion products are identified and causes of the corrosion is revealed.更多还原