Enhanced formability at elevated temperature of a cross-rolled magnesium alloy sheet

被引:143
作者
Chino, Yasumasa
Sassa, Kensuke
Kamiya, Akira
Mabuchi, Mamoru
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
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 441卷 / 1-2期
关键词
magnesium alloys; cross-roll rolling; press formability; texture; Lankford value;
D O I
10.1016/j.msea.2006.08.038
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Relationship between texture and press formability of AZ31 Mg alloy sheets processed by cross-roll rolling was investigated. The Erichsen values of the cross-rolled specimens showed superior press formability compared with those of the specimens by normal-roll rolling. The superior press formability was related to a reduction in directional dependence of the thickness-direction strain and width-direction strain normalized by the tensile-direction strain (epsilon(t)/epsilon(L) and epsilon(w)/epsilon(L)). The (0002) plane texture for the cross-rolled specimen exhibited the low texture intensity and the narrow spread of basal planes to rolling direction. The reduction of anisotropy in the width-direction strain and the thickness-direction strain was likely attributed to activation of prismatic < a > slip and pyramidal < a + c > slip originated from the texture modifications. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:349 / 356
页数:8
相关论文
共 31 条
[1]   Magnesium alloys development towards the 21st century [J].
Aghion, E ;
Bronfin, B .
MAGNESIUM ALLOYS 2000, 2000, 350-3 :19-28
[2]   Enhanced ductility in strongly textured magnesium produced by equal channel angular processing [J].
Agnew, SR ;
Horton, JA ;
Lillo, TM ;
Brown, DW .
SCRIPTA MATERIALIA, 2004, 50 (03) :377-381
[3]   Study of slip mechanisms in a magnesium alloy by neutron diffraction and modeling [J].
Agnew, SR ;
Tomé, CN ;
Brown, DW ;
Holden, TM ;
Vogel, SC .
SCRIPTA MATERIALIA, 2003, 48 (08) :1003-1008
[4]   A mechanistic understanding of the formability of magnesium: Examining the role of temperature on the deformation mechanisms [J].
Agnew, SR ;
Duygulu, O .
MAGNESIUM ALLOYS 2003, PTS 1 AND 2, 2003, 419-4 :177-188
[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]  
CHINO Y, IN PRESS MAT LETT, V60
[7]  
del Valle JA, 2003, MATER TRANS, V44, P2625, DOI 10.2320/matertrans.44.2625
[8]  
Dieter G.E, 1976, Mechanical Metallurgy
[9]   Effect of single roller driving cold-rolling on texture and formability of pure aluminium sheet [J].
Hu, JG ;
Ikeda, K ;
Murakami, T .
JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1996, 60 (11) :1130-1135
[10]   Randomization of the annealing texture in aluminum 5182 sheet by cross-rolling [J].
Huh, MY ;
Cho, SY ;
Engler, O .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 315 (1-2) :35-46