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

被引：19

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

页码：422 / 426

页数：5

共 17 条

[1]

Culver R.S., 1973, METALLURGICAL EFFECT, P519

[2] Investigation on θ′ precipitate thickening in 2519A-T87 aluminum alloy plate impacted [J].

Gao, Zhi-guo ;

Zhang, Xin-ming ;

Chen, Ming-an .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 476 (1-2) :L1-L3

[3] Influence of strain rate on the precipitate microstructure in impacted aluminum alloy [J].

Gao, Zhiguo ;

Zhang, Xinming ;

Chen, Ming an .

SCRIPTA MATERIALIA, 2008, 59 (09) :983-986

[4] Graded nanostructures produced by sliding and exhibiting universal behavior [J].

Hughes, DA ;

Hansen, N .

PHYSICAL REVIEW LETTERS, 2001, 87 (13) :1-135503

[5] Dynamic deformation and fracture behavior of ultra-fine-grained pure copper fabricated by equal channel angular pressing [J].

Kim, Yang Gon ;

Hwang, Byoungchul ;

Lee, Sunghak ;

Lee, Chul Won ;

Shin, Dong Hyuk .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 504 (1-2) :163-168

[6] Microstructural evolution and nanostructure formation in copper during dynamic plastic deformation at cryogenic temperatures [J].

Li, Y. S. ;

Tao, N. R. ;

Lu, K. .

ACTA MATERIALIA, 2008, 56 (02) :230-241

[7] A critical assessment of high-temperature dynamic mechanical testing of metals [J].

Li, Yulong ;

Guo, Yazhou ;

Hu, Haitao ;

Wei, Q. .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2009, 36 (02) :177-184

[8] Adiabatic shear banding in a tungsten heavy alloy processed by hot-hydrostatic extrusion and hot torsion [J].

Liu Jinxu ;

Li Shukui ;

Zhou Xiaoqing ;

Zhang Zhaohui ;

Zheng Haiyun ;

Wang Yingchun .

SCRIPTA MATERIALIA, 2008, 59 (12) :1271-1274

[9] Influence of microstructure and strain rate on adiabatic shearing behavior in Ti-6Al-4V alloys [J].

Liu, Xinqin ;

Tan, Chengwen ;

Zhang, Jing ;

Hu, Yangguang ;

Ma, Honglei ;

Wang, Fuchi ;

Cai, Hongnian .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 501 (1-2) :30-36

[10] Adiabatic shear banding-induced degradation in a thermo-elastic/viscoplastic material under dynamic loading [J].

Longère, P ;

Dragon, A ;

Trumel, H ;

Deprince, X .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2005, 32 (1-4) :285-320

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