苯酚生产装置的316L不锈钢塔开裂失效分析  

FAILURE ANALYSIS FOR CRACK OF STAINLESS STEEL TOWER ON PHENOL EQUIPMENT

作　　者：熊金平[1] 左禹[1] 郭超 赵景茂[1] 胡定铸[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]空军雷达学院,武汉430012

出　　处：《腐蚀科学与防护技术》2005年第5期363-365,共3页Corrosion Science and Protection Technology

摘　　要：对开裂失效的苯酚生产装置316L不锈钢塔塔身与塔板进行了外观检查,金相显微镜和扫描电子显微镜(SEM)观察了腐蚀开裂断口的形貌;X射线衍射技术和SEM分析了断口表面腐蚀产物的组成.结果表明,开裂失效的原因是氯离子导致的应力腐蚀开裂.The appearance of failed stainless steel tower was examined by naked eye. The morphology of fracture on stainless steel was observed by optical-microscope and SEM. With help of x - ray spectrum and SEM, the element contents of the corrosion products on the fracture of the failed stainless steel were analyzed. The results indicted that the failure of stainless steel tower was attributed to SCC induced by Cl^-.

关 键 词：不锈钢 苯酚生产装置 失效分析 

分 类 号：TG172.9[金属学及工艺—金属表面处理]