低碳钢Q235形变奥氏体的静态再结晶  

Static Recrystallization of Deformed Austenite in Low Carbon Steel Q235

作　　者：王瑞珍[1] 杨忠民[1] 车彦民[1] 

机构地区：[1]钢铁研究总院结构材料研究所,北京100081

出　　处：《钢铁研究学报》2006年第3期33-37,共5页Journal of Iron and Steel Research

基　　金：国家重大基础研究规划项目(科99060100A)

摘　　要：在Thermecmastor—Z热模拟试验机上进行了低碳钢Q235的双道次压缩试验，确定了该钢静态再结晶的动力学方程。结果表明，在大变形量下，即使变形温度较低（850～800℃），应变速率较高时，静态再结晶的速度仍然很快。通过静态再结晶可以将奥氏体晶粒尺寸细化至10～20μm。The double-hit hot compression test for low carbon steel Q235 was conducted on Thermecmastor-Z simulator. The kinetics equations of static recrystallization were established. Results show that static recrystallization proceeds rapidly under the conditions of heavy deformation, high strain rate and at low temperature in the range of 850-800℃. Austenite grain size within 10-20/lm can be obtained by static recrystallization of deformed austenire.

关 键 词：低碳钢 奥氏体 静态再结晶 晶粒尺寸 双道次压缩试验 热模拟试验机 

分 类 号：TG111.7[金属学及工艺—物理冶金]