Effects of internal strains on hardness of nanocrystalline Al-Fe-Cr-Ti alloys

被引：20
|
作者：
Shaw, L
Luo, H
Villegas, J
Miracle, D
机构：
[1] Univ Connecticut, Dept Met & Mat Engn, Storrs, CT 06269 USA
[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA
来源：
SCRIPTA MATERIALIA | 2004年 / 51卷 / 05期
关键词：
nanostructured materials; aluminum alloy; internal strains; microhardness;
D O I：
10.1016/j.scriptamat.2003.12.033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of internal strain on the microhardness of nanocrystalline metals were investigated using an Al93Fe3Ti2Cr2 alloy prepared via mechanical alloying. The results clearly indicate that the hardness of the nanocrystalline Al alloy decreases with decreasing the internal strain at a given grain size, even though dislocation activity within the grain interior is absent in all cases. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：449 / 453
页数：5
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