通过热力学计算和析出物形貌观察表明,析出物对铸坯晶粒的生长起到一定的限制作用.6道次连轧模拟计算结果与观察结果吻合较好,同时也表明,再结晶是组织细化的主要原因.各种强化方式定量计算的结果表明,细晶强化是主要的强化方式,沉淀强化和位错强化次之,且它们对屈服强度的贡献相近.
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