Large-scale synthesis of Al-Cu-Fe submicron quasicrystals
Large-scale synthesis of Al-Cu-Fe submicron quasicrystals
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Al-Cu-Fe亚微米准晶的大规模合成
DOI：
10.1016/j.scriptamat.2008.05.008
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发表时间：
2008-09-01
影响因子：
6
通讯作者：
Liu, Weimin
中科院分区：
文献类型：
--
作者：
Li, Laijun;Bi, Qinling;Liu, Weimin
标称成分为Al62Cu25.5Fe12.5（at.%）的Al-Cu-Fe合金已经通过压力辅助自蔓延高温合成和快速凝固的组合制造。合成的Al-Cu-Fe合金主要由二十面体准晶（IQC）Psi-Al 65 Cu 20 Fe 15和立方β-Al（Cu，Fe）固溶体相组成，具有细小的等轴晶，晶粒尺寸在50 ~ 200 nm之间。解释了超细晶IQC相的形成机理。(C)2008 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
Al-Cu-Fe alloy with a nominal composition of Al62Cu25.5Fe12.5 (at.%) has been fabricated by a combination of pressure-assisted self-propagating high-temperature synthesis and rapid solidification. The as-synthesized Al-Cu-Fe alloy mainly consists of icosahedral quasicrystalline (IQC) Psi-Al65Cu20Fe15 and cubic beta-Al (Cu, Fe) solid solution phases, and exhibits finely equiaxed grains with a size ranging from 50 to 200 nm. The mechanism for the formation of the ultrafine-grained IQC phase has been explained. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.