真空条件下,在低碳微合金钢中添加体积分数为1.1%的微米级ZrC陶瓷颗粒,在450mm热轧试验机上进行轧制,将ZrC颗粒作为形变核心和奥氏体及形变诱导铁素体的再结晶核心.热轧后晶粒被细化到5.5μm,钢板抗拉强度和屈服强度分别达到635MPa和517.5MPa,钢板强韧化的机制是综合引入了形变强化、相变强化、第二相粒子强化及细晶强化的结果.热轧钢板的显微组织为铁素体加少量珠光体,钢中存在大量第二相粒子,并呈弥散分布.
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