对不同温度下变形和变形后再加热到奥氏体区的低碳钢SS400的显微组织进行了研究.结果表明:变形使奥氏体和铁素体晶界呈锯齿状;锯齿状的奥氏体晶界优先成为铁素体的形核位置;锯齿状的铁素体晶界有利于铁素体再结晶核心的形成.
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