Microstructures and tensile properties of AZ31 magnesium alloy by continuous extrusion forming process

被引：47
作者：
Zhang, Hui [1 ]
Yan, Qiqi [1 ]
Li, Luoxing [1 ]
机构：
[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 486卷 / 1-2期
关键词：
AZ31 magnesium alloy; continuous extrusion forming; microstructure; tensile property;
D O I：
10.1016/j.msea.2007.09.001
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The objective of this study is to investigate the possibility of continuous extrusion forming (Conform process) of AZ31 magnesium alloy. The results indicate that continuous extrusion forming can refine the structure, improve the degree of the structure homogeneity and change the crystal orientation of basal plane and hence enhance the ductility but decrease tensile strength at room temperature. The fracture mechanisms of the material prepared by Conform process change from the mixture of ductile and brittle to the full dimpled rupture compared with the conventional extrudate. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：295 / 299
页数：5
相关论文
共 20 条
[1]   Influence of texture and grain size on work hardening and ductility in magnesium-based alloys processed by ECAP and rolling [J].
del Valle, J. A. ;
Carreno, F. ;
Ruano, O. A. .
ACTA MATERIALIA, 2006, 54 (16) :4247-4259
[2]   Accumulative roll bonding of a Mg-based AZ61 alloy [J].
del Valle, JA ;
Pérez-Prado, MT ;
Ruano, OA .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 410 :353-357
[3]   CONFORM - NEW CONCEPT FOR CONTINUOUS EXTRUSION FORMING OF METALS [J].
ETHERINGTON, C .
JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME, 1974, 96 (03) :893-900
[4]   The use of severe plastic deformation for microstructural control [J].
Furukawa, M ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 324 (1-2) :82-89
[5]   Grain refinement in as-cast AZ80 Mg alloy under large strain deformation [J].
Guo, Q. ;
Yan, H. G. ;
Chen, Z. H. ;
Zhang, H. .
MATERIALS CHARACTERIZATION, 2007, 58 (02) :162-167
[6]   Microstructure evolution of AZ31 Mg alloy during equal channel angular extrusion [J].
Jin, Li ;
Lin, Dongliang ;
Mao, Dali ;
Zeng, Xiaoqing ;
Chen, Bin .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 423 (1-2) :247-252
[7]   Mechanical properties and microstructures of an AZ61 Mg Alloy produced by equal channel angular pressing [J].
Kim, WJ ;
An, CW ;
Kim, YS ;
Hong, SI .
SCRIPTA MATERIALIA, 2002, 47 (01) :39-44
[8]   Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure [J].
Mukai, T ;
Yamanoi, M ;
Watanabe, H ;
Higashi, K .
SCRIPTA MATERIALIA, 2001, 45 (01) :89-94
[9]   THE EXPERIMENTAL SIMULATION OF DEFORMATION-BEHAVIOR OF METALS IN THE CONFORM PROCESS [J].
PENG, DS ;
YAO, BQ ;
ZUO, TY .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1992, 31 (1-2) :85-92
[10]   Grain refinement of Mg-Al-Zn alloys via accumulative roll bonding [J].
Pérez-Prado, MT ;
del Valle, JA ;
Ruano, OA .
SCRIPTA MATERIALIA, 2004, 51 (11) :1093-1097
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