理化检验-物理分册2024，Vol.60Issue(5)：57-60,4.DOI:10.11973/lhjy-wl202405015
气化炉激冷室堆焊层开裂原因
Reasons for cracking of the welding layer in the quenching chamber of the gasifier
摘要
Abstract
During the regular inspection of a certain gasifier,it was found that there were a large number of dendritic cracks in the welding layer of the quenching chamber wall of the gasifier,and penetrating cracks appeared at the inlet connection of the quenching water.The causes of cracking in the gasifier were analyzed using methods such as macroscopic observation,water quality analysis,metallographic examination,scanning electron microscopy and energy spectrum analysis.The results show that the black water at the bottom of the gasifier contained a large amount of chloride ions,and the nickel element content in the stainless steel cladding layer of the quenching chamber was relatively low.Moreover,the gasifier had been in service under high temperature and stress conditions for a long time,ultimately led to stress corrosion cracking of the cladding layer.关键词
气化炉/氯离子/堆焊层/应力腐蚀开裂/点腐蚀Key words
gasifier/chlorine ion/welding layer/stress corrosion cracking/pitting corrosion分类
通用工业技术引用本文复制引用
蒋作文,崔倩倩,沈冬奎,孙振西,李敞,惠进财..气化炉激冷室堆焊层开裂原因[J].理化检验-物理分册,2024,60(5):57-60,4.基金项目
山东能源集团有限公司安泰检验科研项目(AT-2023-001) （AT-2023-001）
