对超高碳钢进行热轧预处理,得到组织细小、弥散分布的球化碳化物和部分片状珠光体,有效地增强了其后续球化效果;基于离异共析原理,采用不同的工艺球化处理热轧超高碳钢,并对其进行了扫描电镜分析和拉伸试验.结果表明:随奥氏体化温度升高碳化物大小和间距逐渐增大,保温时间延长也将增大碳化物颗粒的间距;球化超高碳钢显示出优异的室温拉伸性能,具有明显的屈服现象,强度和塑性均很好,850℃奥氏体化的超高碳钢屈服强度和抗拉强度分别为688MPa和1005 MPa,伸长率为16.7%.
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