利用θ-θ液态金属X射线衍射仪研究了纯铁和Fe-C二元合金的液态结构,在此基础上给出了两种金属的微观原子结构研究结果表明:在近熔点熔化后,液态纯铁和Fe-C合金中保持有大量的原子团簇;液态纯铁的原子团内保持有熔化前的体心立方单元,单元是共棱组合的;在液态Fe-C合金中既有Fe-C原子团簇,也有Fe-Fe原子团簇;随着温度的升高,两种金属的原子团尺寸都减小,配位数、原子间平均最近邻距离和原子团内的原子数目均减小.
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