Finite Element Simulation of Aluminum ECAP Material Flow

被引：1
|
作者：
Li, J. H. [1 ]
Yu, Z. J. [1 ]
Xiao, D. Z. [1 ]
Zhang, L. P. [1 ]
机构：
[1] Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China
来源：
APPLIED MATERIALS AND TECHNOLOGIES FOR MODERN MANUFACTURING, PTS 1-4 | 2013年 / 423-426卷
关键词：
ECAP; finite element; material flow; aluminum; SEVERE PLASTIC-DEFORMATION; CHANNEL ANGULAR EXTRUSION; HIGH-PRESSURE TORSION; GRAINED COPPER; BACK PRESSURE; REFINEMENT; STRENGTH; ALLOY; SIZE;
D O I：
10.4028/www.scientific.net/AMM.423-426.267
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To enhancing strength and toughness of metals, severe plastic deformation (SPD) grain refinement was a typical method. As one of the SPD method, equal channel angular pressing is an effective method in fabricating ultra-fine grain metallic materials. In this paper, the rigid-plastic finite element method was used to analyze the aluminum alloy ECAP processing, to reveal the material flow character and its effect on microstructure evolution. The simulation results were agreed with plastic mechanics and experiment well, and it was shown that distribution of maximum principal stress was not uniform, material located at the front-end of sample flow easily and material located at the top of die channel corner flow difficultly.
引用
收藏
页码：267 / 270
页数：4
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