利用真空熔炼的方法制备了含1.3%铝不同碳含量的铁基合金,用扫描电镜附带的能谱仪对其进行成分均匀性分析,确定其可用来测相变温度,并用差热分析法测定了相变温度Ac1和Ac3;借助Thermo-Calc软件计算了含1.3%铝的铁-铝-碳体系的垂直截面相图,得到A1,A3值.结果表明:试验与计算结果并不吻合,说明铁-铝-碳体系的热力学参数需进一步优化,而DSC的测试结果可为Thermo-Calc软件中该体系热力学数据库的优化提供试验依据.
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