Enhancement of tensile ductility of magnesium alloy produced by torsion extrusion

被引:92
作者
Chino, Yasumasa [1 ]
Sassa, Kensuke [1 ]
Mabuchi, Mamoru [2 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Mat Res Inst Sustainable Dev, Moriyama Ku, Nagoya, Aichi 4638560, Japan
[2] Kyoto Univ, Grad Sch Energy Sci, Dept Energy Sci & Technol, Sakyo Ku, Kyoto 6068501, Japan
关键词
magnesium; texture; mechanical properties; torsion extrusion; twinning;
D O I
10.1016/j.scriptamat.2008.04.013
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Torsion extrusion was carried out on a commercial magnesium alloy. The torsion-extruded specimen tends to produce texture highly inclined (30 degrees) to the extrusion direction, and the annealed torsion-extruded specimen shows abnormal grain growth. The room temperature ductility is significantly enhanced by the torsion extrusion because of these textural and microstructural modifications, which are attributed to an enhancement of the Schmid factor for both basal slip and twinning. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:399 / 402
页数:4
相关论文
共 26 条
[1]   Crystallographic texture evolution of three wrought magnesium alloys during equal channel angular extrusion [J].
Agnew, SR ;
Mehrotra, P ;
Lillo, TM ;
Stoica, GM ;
Liaw, PK .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 408 (1-2) :72-78
[2]   Plastic flow of aluminium extruded under sampler conditions [J].
Bochniak, W ;
Korbel, A .
MATERIALS SCIENCE AND TECHNOLOGY, 2000, 16 (06) :664-669
[3]   Microstructure and texture development during hydrostatic extrusion of magnesium alloy AZ31 [J].
Bohlen, J ;
Yi, SB ;
Swiostek, J ;
Letzig, D ;
Brokmeier, HG ;
Kainer, KU .
SCRIPTA MATERIALIA, 2005, 53 (02) :259-264
[4]   The texture and anisotropy of magnesium-zinc-rare earth alloy sheets [J].
Bohlen, Jan ;
Nuernberg, Marcus R. ;
Senn, Jeremy W. ;
Letzig, Dietmar ;
Agnew, Sean R. .
ACTA MATERIALIA, 2007, 55 (06) :2101-2112
[5]   Mechanical properties and press formability at room temperature of AZ31 Mg alloy processed by single roller drive rolling [J].
Chino, Y ;
Mabuchi, M ;
Kishihara, R ;
Hosokawa, H ;
Yamada, Y ;
Wen, C ;
Shinojima, K ;
Iwasaki, H .
MATERIALS TRANSACTIONS, 2002, 43 (10) :2554-2560
[6]   Stretch formability at elevated temperature of a cross-rolled AZ31 Mg alloy sheet with different rolling routes [J].
Chino, Yasumasa ;
Sassa, Kensuke ;
Kamiya, Akira ;
Mabuchi, Mamoru .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 473 (1-2) :195-200
[7]   Compressive deformation behavior at room temperature-773 K 14 in Mg-0.2 mass%(0.035at.%)Ce alloy [J].
Chino, Yasumasa ;
Kado, Motohisa ;
Mabuchi, Mamoru .
ACTA MATERIALIA, 2008, 56 (03) :387-394
[8]   Enhanced formability at elevated temperature of a cross-rolled magnesium alloy sheet [J].
Chino, Yasumasa ;
Sassa, Kensuke ;
Kamiya, Akira ;
Mabuchi, Mamoru .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 441 (1-2) :349-356
[9]   Effect of post weld heat treatment on microstructures and mechanical properties of AZ31B friction welded joint [J].
Fukumoto, S. ;
Yamamoto, D. ;
Tomita, T. ;
Okita, K. ;
Tsubakino, H. ;
Yamamoto, A. .
MATERIALS TRANSACTIONS, 2007, 48 (01) :44-52
[10]   Life cycle inventory study on magnesiurn alloy substitution in vehicles [J].
Hakamada, Masataka ;
Furuta, Tetsuharu ;
Chino, Yasumasa ;
Chen, Youqing ;
Kusuda, Hiromu ;
Mabuchi, Mamoru .
ENERGY, 2007, 32 (08) :1352-1360