Optimization of strength and ductility in nanocrystalline and ultrafine grained metals

被引：649
作者：
Koch, CC [1 ]
机构：
[1] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
来源：
SCRIPTA MATERIALIA | 2003年 / 49卷 / 07期
基金：
美国国家科学基金会;
关键词：
nanocrystalline metals; ultrafine grained metals; yield strength; ductility;
D O I：
10.1016/S1359-6462(03)00394-4
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The possible optimization of strength and ductility in nanocrystalline and ultrafine grained metals is assessed. Most nanocrystalline metals show little ductility while exhibiting enhanced strength. The possibility that these properties can be optimized is discussed for microstructures with appropriate grain size distributions, and the introduction of second phase particles. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：657 / 662
页数：6
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