DC03钢静态再结晶模型的研究  

Study on the Model for Static Recrystallization of DC03 Steel

作　　者：李立新[1] 雷浩[1] 方燕子[1] 袁翔[1] 苏雨萌[1] 皮大光[1] 

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081

出　　处：《钢铁钒钛》2013年第2期98-102,共5页Iron Steel Vanadium Titanium

摘　　要：运用正交设计的试验方法,在高温箱式电阻炉内模拟DC03钢高温短时连续退火和低温长时罩式退火工艺条件,采用后插法计算出DC03钢冷轧后各种退火条件下的静态再结晶软化率,研究其与变形程度、退火温度和退火时间的关系。选用Avrami方程建立模型并与热加工两道次间的静态再结晶动力学模型作对比。研究结果表明:退火温度对热加工两道次间的静态再结晶率影响程度比对冷轧后的退火静态再结晶率影响程度大,而保温时间对冷轧后的退火静态再结晶率影响程度比对热加工两道次间的静态再结晶率影响程度大。Through the method of orthogonal design, experiments were carried out to simulate the process conditions of high-temperature short-time continuous annealing and low-temperature long-time batch an- nealing of DC03 steel in the high-temperature chamber-type eleetrie resistance furnaee. Static recrystalli- zation softening rate of DC03 steel under various annealing conditions after cold rolling was measured by using back-extrapolation method and its relationship with deformation degree, annealing temperature and annealing time was studied. The model was built based on Avrami equation and compared with static re- crystallization kinetics model in double-pass hot working. The result indicates that annealing temperature has more influence on static recrystallization rate between two passes of hot deformation than that after cold rolling while the influence of holding time on them is totally opposite to that of annealing tempera-ture.

关 键 词：DC03钢 高温短时退火 低温长时退火 静态再结晶 

分 类 号：TG142.1[一般工业技术—材料科学与工程]