Al-Cu-Fe-Mg,Al-Cu-Fe-Zn和Al-Cu-Fe-Zn-Mg系准晶的形成规律研究

来源期刊：中南大学学报(自然科学版)1992年第3期

论文作者：陈振华 蒋向阳 王云 周多三 黄培云

文章页码：328 - 334

关键词：快速冷凝; 粉末; 准晶; 相变

Key words：rapid solidification; powder; quasicrystal; phase transformation

摘    要：著者采用快速凝固方法制备了Al-Cu-Fe-Mg,Al-Cu-Fe-Zn和Al-Cu-Fe-Mg-Zn系合金粉末,这些快冷合金粉末在室温下为晶态相或晶态相与准晶相共存结构,把粉末加热到773～873K时,晶态相开始转变为准晶相,在1000～1073K时晶态相基本上完全转变为准晶相,继续提高加热温度,准晶相重新变为晶态相。本文对三种合金系列的加热相变规律,准晶相形成规律和准晶相的成分范围进行了详细的研究。

Abstract: By means of rapid solidification, Al-Cu-Fe-Mg, A1-Cu-Fe-Zn and Al-Cu-Fe-Mg-Zn powders were produced. These powders possess structures of crystalsor coexisting crystal and quasicrystal. When these powders were annealed atabout 773～873K, the crystalline phase starts to transform into cluasicrystall-ine phase; at about 1000～1073 K, the powders are basically composed ofquasicrystalline phase; at higher temperature, the quasicrystalline phasetransforms back into crystalline phase. In the present paper, the phase trans-formation and quasicrystals formation characteristics during the annealingprocedure, and the composition scope of the quasicrystals in three alloys sys-tems are reported.