借助相图计算及试验分析,对含碳1.5%(质量分数)的超高碳钢化学成分铝的合理选择进行了分析研究.结果表明,随铝含量增加,A1温度升高,珠光体相变组织片层间距减小,网状碳化物减少.随铝含量增加单相奥氏体区变小变无,液化温度降低,热加工性能恶化.综合考虑,含碳1.5%(质量分数)的超高碳钢化学成分铝的合理添加量应选择为2.0%(质量分数)左右.
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