输送高温粗煤气铬镍奥氏体不锈钢管道的应力腐蚀开裂  

STRESS CORROSION CRACKING OF Ni - Cr STAINLESS STEEL PIPE USED FOR RAW COAL GAS TRANSPORTATION AT HIGH TEMPERATURE

作　　者：孙剑虹[1] 闫家树[1] 叶栋林[1] 王长荣 赵继坤[3] 顾丛峰 

机构地区：[1]哈尔滨焊接研究所 [2]哈尔滨气化厂 [3]大庆油田化学助剂厂 [4]哈尔滨市医药公司

出　　处：《焊接》1997年第6期17-19,共3页Welding & Joining

摘　　要：通过化学成分、显微硬度、金相及扫描电镜断口分析技术进行了综台分析,查明了用ICr18Ni9Ti制造的高温粗煤气输送管道在运行了18个月后发生严重泄漏的原因.指出,将ICr18Ni9Ti材质用在有应力腐蚀环境下工作不一定是适宜的.The reasons of serious leakage of raw coal gas transportation pipes arc analyzed through chemical analysis, micro - hardness measurement, metallography and scanning electron microscope examinations to fracture surface. The pipes arc made from 1Crl8Ni9Ti stainless steel worked at high temperature for 18 months. The results show that 1Crl8Ni9Ti stainless steel pipes are not suitable to be used at stress corrosion surroundings.

关 键 词：高炉煤气 不锈钢 管道 应力腐蚀 高温粗煤气 

分 类 号：TQ547.81[化学工程—煤化学工程] TQ542.9