奥氏体再结晶区控制轧制对高强钢韧性的影响  

Effect of Controlled Rolling in Austenitic RecrystallizationZone on Toughness of High Strength Steel

作　　者：肖彦忠[1] 孔德南[1] 王军[1] Xiao Yanzhong;Kong Denan;Wang Jun(Anyang Iron&Steel Stock Co.,Ltd)

机构地区：[1]安阳钢铁股份有限公司

出　　处：《特钢技术》2020年第3期10-12,共3页Special Steel Technology

摘　　要：TMCP工艺的目的是改善钢板组织状态,细化奥氏体晶粒,其工艺特点为在再结晶区或未再结晶区给予大压下进行轧制,然后再根据组织设计,进行不同温度区段的冷却。本文进行了奥氏体再结晶区控制轧制的工艺试验,试验结果表明,通过合理的待温温度控制可以有效的细化高强钢相变前原始奥氏体晶粒尺寸,进而实现相变后的晶粒细化,从而提高了试验钢的韧性。The purpose of TMCP process is to improve the microstructure of steel plate and refine austenite grain.The process features rolling in recrystallization zone or non recrystallization zone under high pressure,and then cooling at different temperature zones according to microstructure design.The experimental results show that the original austenite grain size before transformation can be effectively refined by reasonable temperature control,and then the grain refinement after transformation can be realized,so as to improve the toughness of the test steel.

关 键 词：高强钢 奥氏体 再结晶 晶粒 控制轧制 TMCP 

分 类 号：TG335[金属学及工艺—金属压力加工]