A high-strength bulk nanocrystalline Al-Fe alloy processed by mechanical alloying and spark plasma sintering

被引：99
作者：
Sasaki, T. T. [1 ]
Mukai, T.
Hono, K.
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
SCRIPTA MATERIALIA | 2007年 / 57卷 / 03期
关键词：
mechanical alloying; plasma spark sintering; aluminum alloy; nanocrystalline alloy;
D O I：
10.1016/j.scriptamat.2007.04.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A bulk nanocrystalline Al-5 at.% Fe alloy was synthesized by mechanical alloying and spark plasma sintering. The alloy exhibited a very high compressive yield strength of 1 GPa with a plastic strain of 0.3. The alloy consists of coarse alpha-Al grains that form from powder boundaries and nanocrystalline regions composed of alpha-Al and Al6Fe phases. The combination of the coarse and nanoscale grains are considered to be the reason for the large plastic strain in such a high-strength material. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：189 / 192
页数：4
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