以热力学和动力学理论为基础,开发了组织性能预测系统,并在首钢中厚板厂实现应用.预测了钢板屈服强度、抗拉强度随工艺及冷却参数的变化,预测结果和实测值吻合较好.随着冷却速率的增加,铁素体体积分数减少,晶粒尺寸变细.同样,成品厚度较大时,铁素体晶粒尺寸较大,铁素体体积分数变化不大.待温厚度为成品厚度的2倍左右,可以使Q235中板获得良好的力学性能.
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