Friction stir processing of large-area bulk UFG aluminum alloys

被引:243
作者
Su, JQ [1 ]
Nelson, TW [1 ]
Sterling, CJ [1 ]
机构
[1] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA
关键词
friction stir processing; aluminum alloys; ultrafine grained microstructure;
D O I
10.1016/j.scriptamat.2004.09.014
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Friction stir processing (FSP) was used to refine the grain size in commercial 7075 Al to a sub-micrometer scale (similar to250nm). The resulting microstructural characteristics were studied. In principle, by running multiple overlapping passes, any desired size thin sheet can be processed to an ultrafine grained microstructure (UFG) material with a relatively uniform microstructure. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:135 / 140
页数:6
相关论文
共 24 条
[1]  
Benavides S, 2000, ULTRAFINE GRAINED MATERIALS, P155
[2]  
Furukawa M, 2000, ULTRAFINE GRAINED MATERIALS, P125
[3]   Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys [J].
Jata, KV ;
Semiatin, SL .
SCRIPTA MATERIALIA, 2000, 43 (08) :743-749
[4]   Ductility of nanostructured materials [J].
Koch, CC ;
Morris, DG ;
Lu, K ;
Inoue, A .
MRS BULLETIN, 1999, 24 (02) :54-58
[5]   Influence of stacking fault energy on microstructural development in equal-channel angular pressing [J].
Komura, S ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
JOURNAL OF MATERIALS RESEARCH, 1999, 14 (10) :4044-4050
[6]   Friction stir process as a new manufacturing technique of ultrafine grained aluminum alloy [J].
Kwon, YJ ;
Saito, N ;
Shigematsu, I .
JOURNAL OF MATERIALS SCIENCE LETTERS, 2002, 21 (19) :1473-1476
[7]   Low-temperature superplasticity in nanostructured nickel and metal alloys [J].
McFadden, SX ;
Mishra, RS ;
Valiev, RZ ;
Zhilyaev, AP ;
Mukherjee, AK .
NATURE, 1999, 398 (6729) :684-686
[8]   High strain rate superplasticity in a friction stir processed 7075 Al alloy [J].
Mishra, RS ;
Mahoney, MW ;
McFadden, SX ;
Mara, NA ;
Mukherjee, AK .
SCRIPTA MATERIALIA, 1999, 42 (02) :163-168
[9]   Friction stir processing: A new grain refinement technique to achieve high strain rate superplasticity in commercial alloys [J].
Mishra, RS ;
Mahoney, MW .
SUPERPLASTICITY IN ADVANCED MATERIALS, ICSAM-2000, 2001, 357-3 :507-512
[10]   High resolution EBSD analysis of the grain structure in an AA2024 friction stir weld [J].
Norman, AF ;
Brough, I ;
Prangnell, PB .
ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3, 2000, 331-3 :1713-1718