摘要
针对某制氢装置转化炉炉管出口短节的开裂,对其进行宏观形貌检验、合金元素成分分析、金相检验、硬度检验、扫描电镜检验及能谱分析。检验结果表明,短节由于存在化学成分偏析,造成耐高温性能下降,在高温作用下发生了蠕变开裂。针对开裂原因,提出了相应的建议和措施。
Aiming at the furnace tube outlet short section of a hydrogen plant cracked, in order to find out the causes, some experiments were carried out, such as macroscopic examination, alloying element composition analysis, metallographic examination, hardness testing, scanning e-lectron microscopy and spectroscopy. The result shows that there is a short section of the chemical composition segregation, its high temperature performance decline under high temperature creep cracking occurred. According to the results, some specific precaution is proposed in this paper.
出处
《石油化工设备》
CAS
2016年第B08期48-53,共6页
Petro-Chemical Equipment
