The effect of strain rate on the microstructure of 2519A aluminium alloy plate impacted at 573 K

被引：17
|
作者：
Gao, Zhi-guo [1 ]
Zhang, Xin-ming [1 ]
Zhao, Yi-sheng [1 ,2 ]
Chen, Ming-an [1 ]
Li, Hui-jie [1 ]
机构：
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[2] Shenzhen Polytech, Shenzhen 518055, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 481卷 / 1-2期
关键词：
Microstructure; Aluminium alloy; Precipitation; TEMPERATURE; BEHAVIOR; METALS;
D O I：
10.1016/j.jallcom.2009.03.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of strain rate on the microstructure of 2519A aluminium alloy plate impacted at 573 K was characterized by optical microscopy (OM) and transmission electron microscopy (TEM). Adiabatic shear lines, arc-like shearing bands and DRX grains due to the concentrated stress and heat were observed in impacted aluminum alloy plate. Highly regular dislocation networks due to dislocation climb and irregular dislocation networks pinned by the coarsened precipitates were obtained with the increasing strain rate. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：422 / 426
页数：5
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