Severe plastic deformation of copper and Al-Cu alloy using multiple channel-die compression

被引：33

作者：

Parimi, A. K. ^{[1
]}

Robi, P. S. ^{[1
]}

Dwivedy, S. K. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, Gauhati 781039, India

来源：

MATERIALS & DESIGN | 2011年 / 32卷 / 04期

关键词：

Non-ferrous metals and alloys; Nano material; Plastic behavior; STRAIN-RATE SENSITIVITY; NANOSTRUCTURED MATERIALS; BEHAVIOR;

D O I：

10.1016/j.matdes.2010.11.074

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Severe plastic deformation studies of copper and Al-Cu alloy by multiple channel-die compression tests were investigated. The materials were tested under plane strain condition by maintaining a constant strain rate of 0.001/s. Extensive grain refinement was observed resulting in nano-sized grains after severe plastic deformation with concomitant increase in flow stress and hardness. The microstructural investigation of the severely deformed materials was investigated using optical microscope and scanning electron microscope. Shear band formation was identified as the failure mechanism in the two phase Al-Cu alloy. The results indicate difficulty in obtaining severe plastic deformation for alloys having two phase micro-structure. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1948 / 1956

页数：9

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