利用喷射成形技术制备了7A60合金.借助扫描电镜(SEM),透射电镜(TEM),X射线衍射(XRD)等手段研究了喷射成形与铸造7A60合金微观组织的特点.结果表明,铸造7A60合金的组织粗大,偏析严重.喷射成形7A60合金主要由细化的等轴晶组成,无明显偏析.与传统铸锭冶金工艺相比,喷射成形工艺大大提高了冷却速率,显著细化了7A60合金的微观组织.
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