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采用SEM,XRD和TMS系统地研究了电弧熔炼Fe100-xNbx(x=6,9,12,15,17)合金的显微组织和压缩性能.结果表明,合金主要由初生相(α-Fe或Fe2Nb)和共晶组织(L→α-Fe+Fe2Nb)组成;Fe91Nb9合金具有最佳的综合力学性能,其压缩断裂强度可达1.63 GPa,屈服强度可达1.04 GPa,压缩应变延伸率可达23%.用Hf部分代替Fe91Nb9合金中的Nb,对合金的显微组织和压缩力学性能不产生明显影响;用Y部分代替Fe91Nb9合金中的Fe会使合金的力学性能急剧恶化.

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