热加工工艺对C-Mn钢组织结构的影响  

Effects of Thermal Processing Technology on Microstructure of C-Mn Steel

作　　者：邸全康[1,2] 康永林[2] 王全礼[1] 金永春[1] 

机构地区：[1]首钢技术研究院,北京100043 [2]北京科技大学,北京100083

出　　处：《轧钢》2011年第6期24-28,共5页Steel Rolling

摘　　要：研究了热加工工艺制度对0.23%C-0.60%Si-1.50%Mn-0.44Ceq中低碳钢亚晶组织结构的影响规律。验证了晶内先共析铁素体的析出条件,测定了不同变形温度下试样的应力-应变曲线及动态CCT曲线。分析了变形温度对试样软化率、动态再结晶率、相变温度点、珠光体片间距、铁素体晶粒度,位错密度的影响。The effects of thermal processing technology on microstructure of 0.23%C-- 0.60% Si-1.50% Mn --0.44Ceq intermediate and low carbon Si-Mn steel were researched. The precipitation conditions of intragran ular eutectoid ferrite were verified. The stress-strain curves and CCT curves were obtained. The effects of de formation temperature on softening rate, dynamic recrystallization rate, transformation point, pearlite spacing, ferrite grain size and dislocation density of the sample were analyzed.

关 键 词：热加工 CCT DRX TG113.12晶内铁素体 珠光体片层间距 位错密度 

分 类 号：TG335.11[金属学及工艺—金属压力加工] TG113.2