发现在粒状贝氏体组织中,控制其小岛尺寸、数量和分布,可获良好强韧性,研制出粒状贝氏体钢.首次用断续的仿晶界型铁素体作韧性相与粒贝结合,可获优良强韧性,并研制出此类复相钢.通过合金设计,在空冷条件下获得具有超精细结构的无碳化物贝氏体/马氏体复相组织,贝氏体各层次单元由奥氏体膜包围,使贝氏体/马氏体复相组织具有优良的强韧性,并研制出此类高强高韧钢.
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