典型奥氏体不锈钢高温环烷酸腐蚀行为研究  

HIGH TEMPERATURE NAPHTHENIC ACID CORROSION RESEARCH OF TYPICAL AUSTENITIC STAINLESS STEEL

作　　者：江克[1] 陈学东[1,2] 杨铁成[1,2] 张玮 梁春雷[1] 

机构地区：[1]合肥通用机械研究院国家压力容器与管道安全工程技术中心,合肥230031 [2]浙江工业大学化工机械设计研究所,杭州310032

出　　处：《中国腐蚀与防护学报》2012年第1期59-63,共5页Journal of Chinese Society For Corrosion and Protection

基　　金：国家高技术研究发展计划项目(2009AA044800和2007AA04Z430)资助

摘　　要：采用管流实验法研究了321和316L两种典型奥氏体不锈钢在高温环烷酸中的腐蚀行为,并将实验结果与经验数据以及模拟结果对比分析。结果表明,不锈钢腐蚀速率随温度的上升而增加;同一温度下冲刷角90°时的腐蚀速率大于0°;试验数据与相近条件下API 581数据以及在线监测数据对比结果相近;模拟结果与试验结果对比,验证了近壁处湍流强度越大的区域环烷酸腐蚀越严重。The corrosion behaviors of 321 and 316L austenitic stainless steel in high-temperature naphthenic acid medium were investigated by pipe flow.The influence of the erosion angle on naphthenic acid corrosion resistance of stainless steel was mainly analyzed.The results revealed that naphthenic acid corrosion rate increased with increasing temperature.The corrosion rates of erosion angle 90°is greater than 0°at the same temperature.The present experimental data and API 581,on-line monitoring data are close.Similar results were obtained after the test data compared with the empirical data of API 581 and on-line monitoring data.It was shown that naphthenic acid corrosion is most severe in areas of highest turbulence.

关 键 词：环烷酸腐蚀 奥氏体不锈钢 冲刷角 湍流强度 

分 类 号：TG142.71[一般工业技术—材料科学与工程]