火灾后大型储罐用钢12MnNiVR断裂韧性研究  

Study on fracture toughness of 12MnNiVR steel for large oil storage tank after fire exposure

作　　者：周杨飞 叶伟文 肖超波 曹建群 

机构地区：[1]广州市特种承压设备检测研究院,广东省广州市510100

出　　处：《炼油技术与工程》2011年第5期38-41,共4页Petroleum Refinery Engineering

基　　金：国家863计划资助项目(2006AA04Z439);国家十一五科技支撑计划资助项目(2006BKA02B02)

摘　　要：介绍了国产大型原油储罐用钢12MnNiVR经过750℃高温后断裂韧性的试验研究情况,并与室温下12MnNiVR的断裂韧度作对比分析。研究表明,大型原油储罐用钢12MnNiVR在经历750℃高温后,其断裂韧性下降明显,平均断裂韧度为95.49 kJ/m2,为大型原油储罐断裂安全评估提供了重要依据。The fracture toughness of 12MnNiVR steel for large oil storage tanks after fire exposure of a temperature of 750 ℃ was studied, and the test results were compared with those in room temperature. The study shows that the fracture toughness of 12MnNiVR steel for large oil storage tank apparently falls down after 750 ℃ heat exposure. The average fracture toughness is 95.49 after 750 ℃ heat exposure, and the test results provide an important basis for the safety assessment of large oil storage tank after fire exposure.

关 键 词：大型储罐 12MnNiVR 断裂韧性 

分 类 号：TE972[石油与天然气工程—石油机械设备]