JGR610E大型油罐用钢不同工艺下的显微结构特征  

Microstructure Characteristic of JGR610E Large Oil Tank Steel Under Different Processing

作　　者：阴旭[1] 刘翠荣[1] 

机构地区：[1]太原科技大学材料学院,山西太原030024

出　　处：《钢铁研究学报》2014年第1期52-56,共5页Journal of Iron and Steel Research

基　　金：山西省研究生优秀创新项目(20123104)

摘　　要：利用热模拟试验方法系统研究了在线淬火型油罐用钢在不同轧制工艺和不同热处理工艺下的组织特征,并分析了微合金元素碳氮化物的粒子析出行为,研究结果表明,随终轧温度的降低,油罐用钢晶粒尺寸逐渐细化,铁素体数量逐渐增多;随冷却速度的增大,JGR610E组织类型由针状铁素体向粒状贝氏体到板条状下贝氏体转变,晶粒越来越细小。Microstructure in different rolling and heat treatment process of oil tank steel by online quenching was in- vestigated by thermal simulation experiments. Carbonitride precipitating behavior of micro-alloying elements was analyzed systematically. The experimental results show that with decrease in the final rolling temperature, the tank sank steel grain size gradually refines and the number of ferrite gradually increases; with increase of the cool- ing rate, the type of JGR610E organization changes from acicular ferrite, granular bainite to lath bainite, and the grain size is smaller.

关 键 词：在线淬火 油罐用钢 析出行为 

分 类 号：TE972[石油与天然气工程—石油机械设备]