摘要
通过UFC-TMCP技术工艺试验,得到了不同部位的试验钢样品,研究了不同部位的FB钢的微观组织及其对扩孔性能与力学性能的影响。结果表明:该钢主要由贝氏体与铁素体组成,试验钢的强韧性较好;组织中存在的上贝氏体不一定恶化性能,也可能改善性能;块状铁索体与残余奥氏体的生成有利于改善扩孔性能。
By UFC-TMCP technology process experiments, the experimental steel specimens from different parts were obtained. The microstructure of FB steel from different parts and its impact on the pore expanding performance and mechanical properties were studied. The results show the experimental steel is mainly composed of bainite and ferrite, which have good strength and toughness. The microstructure of upper bainite does not necessarily deteriorate the properties, and may also improve the properties. The generat ion of massive ferrite and residual austenite can improve the pore expanding performance.
出处
《热加工工艺》
CSCD
北大核心
2016年第12期93-95,共3页
Hot Working Technology
关键词
FB
双相钢
微观组织
上贝氏体
扩孔性能
FB dual-phase steel
microstructure
upper bainite
pore expanding performance
