Microstructural homogenization of ECAPed copper through post-rolling

被引：16

作者：

Bahadori, Sh. Ranjbar ^{[1
]}

Dehghani, K. ^{[1
]}

Bakhshandeh, F. ^{[1
]}

机构：

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 588卷

关键词：

Equal channel angular pressing; Pure copper; Microstructure; Hardness measurement; X-ray diffraction; Electron microscopy; DEFORMATION-BEHAVIOR; PRINCIPLES; ALUMINUM; ALLOY; SIZE;

D O I：

10.1016/j.msea.2013.09.039

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The pure copper was subjected to equal channel angular pressing (ECAP) followed by cold rolling (CR). After CR the microstrain value increased, the dislocation density improved, and the size of coherent domains decreased. Applying CR to ECAP transformed the microstructure from the equiaxed grains with thick boundaries to an elongated structure with lamellar and straight boundaries. Moreover, it not only decreased the grain size but also alleviated the heterogeneity throughout the workpiece noticeably. Besides, the microhardness amounts were distributed more homogeneously throughout the samples. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：260 / 264

页数：5

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