研究了喷射成形Al-8.5Fe-1.1V-1.9Si耐热铝合金组织结构的演变规律, 测试了挤压态合金在室温及高温条件下的力学性能. 与铸态组织特征相比较, 喷射成形工艺有效地消除了铸态合金中粗大的富Fe析出相, 获得了细小均匀的组织结构. 利用OM, SEM, TEM, XRD等材料分析测试手段, 探索了材料中可能的组织演变过程及规律, 结果表明: 喷射成形制备的Al-Fe-V-Si耐热铝合金中, 形成了大量的弥散分布的球状相, 有效的保证了合金在室温及高温下的力学性能. 室温下, 合金的抗拉强度可以达到445 MPa, 屈服强度也达到了398 MPa, 延伸率为16%; 在315 ℃, 合金的抗拉强度和屈服强度分别为229和209 MPa.
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