摘要
采用热 /力模拟技术研究了新型非调质油井管用钢 33Mn2 V在不同变形温度、变形速率、变形量和初始组织条件下的奥氏体静态再结晶行为。根据所得数据确定了其静态再结晶激活能 Q=115 .4 k J/ mol,并建立了 33Mn2 V钢静态再结晶量的经验模型 :X=1- exp[- 0 .2 2 314 (t/ t0 .2 ) 0 .4 8],t0 .2 =1.2 4 34- 1 0· d20 ·ε- 2 .36 87· ε- 0 .31 6 7· exp(QRT) ,式中道次间隔时间 t≥ 6 0 s时取 t=6 0 s。
Static recrystallization behavior of deformed austenite in steel 33Mn2V for oil well tubes was studied using thermal/dynamic simulation under different temperatures, deformation amounts, deformation rates, and initial austenite grain sizes. Based on the experimental data, an empirical mathematical model for the recrystallization of deformed austenite has been established as X=1-exp[-0.22314(t/t 0.2) 0.48], taking the pass interval t=60 s when t≥60 s, the time for 20 % recrystallization t 0.2=1.2434 -10·d2 0·ε -2.3687· -0.3167·exp(QRT) , and the activation energy Q was determined as 115.4 kJ/mol.
出处
《钢铁》
CAS
CSCD
北大核心
2003年第12期43-48,共6页
Iron and Steel
基金
国家自然科学基金资助项目 (5 0 2 710 0 9)
关键词
静态再结晶
经验模型
微合金钢
无缝油井管
非调质钢
模拟
static recrystallization, empirical model,microalloyed non-quenched/tempered steel, seamless oil well tube
