Double change channel angular pressing of magnesium alloys AZ31

被引：18
作者：
Lu, Liwei [1 ,2 ]
Liu, Tianmo [1 ,2 ]
Chen, Yong [1 ,2 ]
Wang, Liguang [3 ]
Wang, Zhongchang [4 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
[3] Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China
[4] Tohoku Univ, WPI Res Ctr, Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS & DESIGN | 2012年 / 35卷
关键词：
Extrusion; Mechanical properties; Microstructure; MG ALLOY; MECHANICAL-PROPERTIES; GRAIN-REFINEMENT; ROOM-TEMPERATURE; MICROSTRUCTURE; EXTRUSION; BEHAVIOR; DEFORMATION; EVOLUTION; TENSILE;
D O I：
10.1016/j.matdes.2011.09.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new extrusion technique, the double change channel angular pressing (DCCAP), is proposed and applied to the technologically important Mg alloys AZ31. The grains of the alloys are found to be refined remarkably by conducting the DCCAP once, which is attributed to dynamic recrystallization induced by heavily accumulated strain and stress. The grain refinement, together with significantly modified textures and tensile fractures, results in a drastic enhancement of mechanical properties of the AZ31 alloys. This DCCAP technique is believed to be able to serve as an effective processing way to tailor Mg alloys for a wide range of engineering applications. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：138 / 143
页数：6
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