摘要
对丁二烯蒸出塔腐蚀部位几种材质的化学成分、硬度、母材及焊缝金相组织、腐蚀产物的成分、腐蚀区横断面形貌和腐蚀环境进行了分析 ,认为塔体支撑圈焊接区的腐蚀属于缝隙腐蚀。并对缝隙腐蚀的机理和影响因素进行了分析 。
The chemical composition and hardness of several material,metallographic structure of base metal and welding joint,composition of corrosion product,cross section shape and corrosion enviroment at corrosion area of butadiene column are analized.The corrosion at welding area of column supporting ring is crevice corrosion.The mehcanisum of crevice corrosion and influential factors are analized.The protection of crevice corrosion in that column is given.
出处
《石油化工设备技术》
CAS
2001年第3期18-21,共4页
Petrochemical Equipment Technology
