Comparison of microstructure and mechanical properties of pure copper processed by twist extrusion and equal channel angular Pressing

被引：18

作者：

Bar Bahadori, Sh Ranj ^{[1
]}

Dehghani, K. ^{[1
]}

Mousavi, S. A. A. Akbari ^{[2
]}

机构：

[1] Amirkabir Univ Technol, Tehran Polytech, Dept Min & Met Engn, Tehran, Iran

[2] Univ Tehran, Coll Engn, Sch Met & Mat Engn, Tehran, Iran

来源：

MATERIALS LETTERS | 2015年 / 152卷

关键词：

Equal channel angular pressing; Twist extrusion; Pure copper; Grain refinement; Mechanical characterization; Texture; EVOLUTION;

D O I：

10.1016/j.matlet.2015.03.063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Commercially pure copper sample was subjected to severe plastic deformation (SPD) processing via applying twist extrusion (TB) and equal channel angular pressing (ECAP) at room temperature. It was found that in the same accumulated strain (similar to 2.4), TB decreased the mean grain size more than ECAP did. Moreover, the microstructure produced by TE was more homogeneous than that obtained by ECAP. The results of the tensile test showed that the strength properties of the TEed sample were higher than those of the ECAPed one. However, in the same strain value the ductility of the ECAPed specimen was higher than that of the TEed sample. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：48 / 52

页数：5

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