Effects of homogenization treatment on recrystallization behavior and dispersoid distribution in an Al-Zn-Mg-Sc-Zr alloy

被引:114
作者
Wu, Ling-Mei [1 ]
Wang, Wen-Hsiung [1 ]
Hsu, Yung-Fu [2 ]
Trong, Shan [3 ]
机构
[1] Natl Taiwan Univ, Dept Mech Engn, Taipei 106, Taiwan
[2] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, Taipei 106, Taiwan
[3] Chung Shan Inst Sci & Technol, Mat & Electroopt Res Div, Lungtan 325, Taiwan
关键词
Al-Zn-Mg-Sc-Zr alloy; homogenization; recrystallization; dispersoid;
D O I
10.1016/j.jallcom.2007.02.054
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 recrystallized structure of an Al-Zn-Mg-Sc-Zr alloy was found to be significantly affected by dispersoid distribution which depending on the homogenization conditions. That is, the sizes and distribution of dispersoid particles were varied with different homogenization conditions. The finest and densest dispersoid of spherical Al-3(Sc, Zr) particles resulting from the optimum homogenization condition can effectively inhibit recrystallization and resulting in the smallest fraction of recrystallized structure, and hence exhibiting the highest strength after aging treatment. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:163 / 169
页数:7
相关论文
共 20 条
[1]  
[Anonymous], ACTA MAT
[2]   Optimization of hardening of Al-Zr-Sc cast alloys [J].
Belov, N. A. ;
Alabin, A. N. ;
Eskin, D. G. ;
Istomin-Kastrovskii, V. V. .
JOURNAL OF MATERIALS SCIENCE, 2006, 41 (18) :5890-5899
[3]  
CALLISTER WD, 1994, MAT SCI ENG INTRO, P92
[4]   COMPARISON OF INFLUENCE OF CHROMIUM AND ZIRCONIUM ON QUENCH SENSITIVITY OF AL-ZN-MG-CU ALLOYS [J].
CONSERVA, M ;
DIRUSSO, E ;
CALONI, O .
METALLURGICAL TRANSACTIONS, 1971, 2 (04) :1227-&
[5]  
DOHERTY RD, 1982, MET SCI, V16, P1, DOI 10.1179/030634582790427019
[6]   Characterisation of the composition and volume fraction of η′ and η precipitates in an Al-Zn-Mg alloy by a combination of atom probe, small-angle X-ray scattering and transmission electron microscopy [J].
Dumont, M ;
Lefebvre, W ;
Doisneau-Cottignies, B ;
Deschamps, A .
ACTA MATERIALIA, 2005, 53 (10) :2881-2892
[7]   The microstructural evolution of an Al-Zn-Mg-Cu alloy during homogenization [J].
Fan, XG ;
Jiang, DM ;
Meng, QC ;
Zhong, L .
MATERIALS LETTERS, 2006, 60 (12) :1475-1479
[8]  
Humphreys FJ., 2003, Recrystallization and related annealing phenomena, V2
[9]  
Itoh G., 1986, J JPN I LIGHT MET, V36, P485
[10]   THE EFFECT OF HOMOGENIZATION AND PRECIPITATION TREATMENTS ON THE EXTRUDABILITY AND AMBIENT-TEMPERATURE MECHANICAL-PROPERTIES OF ALUMINUM-ALLOY AA2024 [J].
KASSNER, ME ;
LI, X ;
MCQUEEN, HJ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1993, 169 (1-2) :9-17