Plastic flow and deformation homogeneity of 6061 Al during equal channel angular pressing

被引:56
作者
Moon, BS [1 ]
Kim, HS [1 ]
Hong, SI [1 ]
机构
[1] Chungnam Natl Univ, Dept Met Engn, Taejon 305764, South Korea
关键词
cold working; aluminum; aging; micro structure; equal channel angular pressing;
D O I
10.1016/S1359-6462(01)01209-X
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The differences of the plastic flow and deformation homogeneity between underaged and peak-aged 6061 aluminum alloys during equal channel angular pressing were investigated. The inhomogeneity of plastic flow was appreciably influenced by the hardening behavior of underaged and peak-aged 6061 Al alloys. More homogeneous deformation, both microscopically and macroscopically, was observed in the presence of strong precipitates in the peak-aged 6061 Al alloy. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:131 / 136
页数:6
相关论文
共 15 条
[1]   Development of a submicrometer-grained microstructure in aluminum 6061 using equal channel angular extrusion [J].
Ferrasse, S ;
Segal, VM ;
Hartwig, KT ;
Goforth, RE .
JOURNAL OF MATERIALS RESEARCH, 1997, 12 (05) :1253-1261
[2]   DYNAMIC DEFORMATION-BEHAVIOR OF AL-ZN-MG-CU ALLOY MATRIX COMPOSITES REINFORCED WITH 20 VOL-PERCENT SIC [J].
HONG, SI ;
GRAY, GT ;
LEWANDOWSKI, JJ .
ACTA METALLURGICA ET MATERIALIA, 1993, 41 (08) :2337-2351
[3]   Microstructure and stress-strain responses of Al-Mg-Si alloy matrix composites reinforced with 10vol.%Al2O3 particulates [J].
Hong, SI ;
Gray, GT ;
Wang, Z .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 221 (1-2) :38-47
[4]   Equal-channel angular pressing of commercial aluminum alloys: Grain refinement, thermal stability and tensile properties [J].
Horita, Z ;
Fujinami, T ;
Nemoto, M ;
Langdon, TG .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (03) :691-701
[5]   Principle of equal-channel angular pressing for the processing of ultra-fine grained materials [J].
Iwahashi, Y ;
Wang, JT ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
SCRIPTA MATERIALIA, 1996, 35 (02) :143-146
[6]   Effects of strain hardenability and strain-rate sensitivity on the plastic flow and deformation homogeneity during equal channel angular pressing [J].
Kim, HS ;
Hong, SI ;
Seo, MH .
JOURNAL OF MATERIALS RESEARCH, 2001, 16 (03) :856-864
[7]   On the die corner gap formation in equal channel angular pressing [J].
Kim, HS ;
Seo, MH ;
Hong, SI .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 291 (1-2) :86-90
[8]   Effect of aging treatment on heavily deformed microstructure of a 6061 aluminum alloy after equal channel angular pressing [J].
Kim, JK ;
Jeong, HG ;
Hong, SI ;
Kim, YS ;
Kim, WJ .
SCRIPTA MATERIALIA, 2001, 45 (08) :901-907
[9]   Overview no. 131 - "Regular" deformation bands (DBs) and the LEDS hypothesis [J].
Kuhlmann-Wilsdorf, D .
ACTA MATERIALIA, 1999, 47 (06) :1697-1712
[10]   Some observations on deformation banding and correlated microstructures of two aluminum alloys compressed at different temperatures and strain rates [J].
Kulkarni, SS ;
Starke, EA ;
Kuhlmann-Wilsdorf, D .
ACTA MATERIALIA, 1998, 46 (15) :5283-5301