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On the Cyclic Deformation Response and Microstructural Mechanisms of ECAPed and ARBed Copper - an Overview
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The Influence of Stacking Fault Energy on the Cold-Rolling Cu and Cu-Al Alloy: Structure and Mechanics Properties
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HomeMaterials Science ForumMaterials Science Forum Vol. 683On the Cyclic Deformation Response and...

On the Cyclic Deformation Response and Microstructural Mechanisms of ECAPed and ARBed Copper - an Overview

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Abstract:

With the increase of interest in using ultra-fine and nano-grained metals for structural purposes, the need to build on the knowledge pool regarding the response and behaviour of those metals under a mechanical load becomes more vital. However, it is well known that, especially for this type of materials such as the ECAPed and ARBed materials, the thermo-mechanical history affects the mechanical behaviour of the product strongly. Although ECAP and ARB are different techniques under the category of severe plastic deformation, similarities in their cyclic deformation response is observed from time to time. Specifically, the microstructural mechanisms involved in accommodating cyclic plastic strain in these two types of materials is seemingly comparable. The similarities arise from the similar microstructures in the majority of the volume of the bulk. In this report, the cyclic deformation response, and the related microstructural mechanisms of ECAPed copper will be discussed first and those of ARBed second. A comparison between ECAPed copper and ARBed copper will then be performed. Furthermore, the differences due to the unique features of ARBed material will be discussed. Lastly, the reasons behind the observed similarities in cyclic deformation behaviour and the related micro-mechanisms for metals process with the two different techniques will also be explored.

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Advanced Mechanical Properties and Deformation Mechanisms of Bulk Nanostructured Materials

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Periodical:

Materials Science Forum (Volume 683)

Pages:

55-68

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.683.55

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Online since:

May 2011

Authors:

Charles C.F. Kwan, Zhi Rui Wang

Keywords:

Accumulative Roll Bonding (ARB), Cyclic Deformation, Cyclic Softening Ratio, Cyclic Stability, Equal-Channel Angular Pressing (ECAP)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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