研究热轧压下率对Q235A碳钢与304不锈钢复合板中碳钢组织的影响.结果表明:珠光体数量随压下率增加而增多,分布更加均匀,先共析铁素体随压下率先增加后减小.轧制形变试样产生内应力促进奥氏体的共析转变;碳原子从被压碎的晶粒内部向外部扩散,导致珠光体增加、先共析铁素体减少.轧制后晶粒细化及析出均匀的碳化物使材料抗拉强度提高.
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