形变温度对Q235碳素钢应变诱导相变过程组织变化的影响

摘要

在热模拟单向压缩条件下，分析了形变温度对Q235碳素钢应变诱导相变过程组织变化的影响。结果表明，在大应变下，Q235碳素钢不存在单纯的形变奥氏体状态，其组织变化规律为奥氏体动态结晶、奥氏体动态结晶和铁素体诱导析出、铁素体析出、铁素体动态结晶。碳素钢热加工过程的实质是动态复合转变。%In the thermal simulation unidirectional compression conditions, the influence of deformation temperature on Q235 carbon steel strain-induced phase transformation process of organizational change. The results show that, under the strain, Q235 carbon steel does not exist simply deformed austenitic state, the variation of austenite dynamic recrystallization, austenite and ferrite dynamic crystallization induced precipitation, ferrite precipitation ferrite dynamic crystallization. Essence carbon steel thermal processing is dynamic complex change.