Flow properties of commercial purity aluminum processed by equal channel angular pressing

被引：19
作者：
Sivaraman, A. [1 ]
Chakkingal, Uday [1 ]
机构：
[1] Indian Inst Technol Madras, Dept Met & Mat Engn, Mat Forming Lab, Chennai 600036, Tamil Nadu, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 487卷 / 1-2期
关键词：
equal channel angular pressing; aluminum alloys; mechanical properties; strain path change;
D O I：
10.1016/j.msea.2007.10.071
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study the flow properties after equal channel angular pressing (ECAP) were investigated using commercial purity aluminum. Commercial purity aluminum samples were subjected to ECAP for up to four passes with a die angle of 90 degrees using two different processing routes. Compression testing was used to determine the subsequent flow behavior. Two types of compression test specimens; one parallel to the axis of ECAP and the other at 45 degrees to the axis of ECAP were machined from specimens subjected to different passes as well as different processmg routes. Anisotropy in flow stress was observed for the ECAP processed specimens. Strain path change parameter was used to quantify the strain path change for this study. From the results higher flow strength values were observed in specimen compressed at 45 degrees to axis of ECA pressed specimens. It was observed that mechanical properties after ECAP depend upon the strain path used in subsequent deformation. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：264 / 270
页数：7
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