3P-1402B氨水槽泄漏事故分析  

CRACKING ANALYSIS OF AMMONIA-FLUME

作　　者：周艳玲 刘其国[2] 

机构地区：[1]上海宝冶设计研究院焊接研究室,上海200941 [2]宝钢化工公司,上海201900

出　　处：《理化检验（物理分册）》2002年第12期565-567,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用化学分析、力学性能测定和金相检验对氨水槽泄漏失效进行了分析。结果表明 ,槽体泄漏系应力腐蚀引发裂纹所致 ,严重的冶金缺陷和组织不良是引起槽体腐蚀开裂的主要因素 ,而焊接应力的存在和废氨水溶液的腐蚀则加速了裂纹的扩展。The cracked ammonia-flume was analyzed by chemical analysis and metallography. It was concluded that stress corrosion caused the ammonia-flume cracking . The severe metallurgical defect and coarse mixed microstructure were the main factors, and welding stress and ammonia accelerated the crack growth.

关 键 词：氨水槽 泄漏 事故分析 冶金缺陷 焊接应力 应力腐蚀 失效分析 裂纹扩展 Q235A钢 

分 类 号：TQ055.09[化学工程] TQ1