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Equal channel angular pressing processing routes and associated structure modification: a differential scanning calorimetry and X-ray line profile analysis

Published online by Cambridge University Press:  17 August 2012

A. Sarkar ,
Satyam Suwas ,
D. Goran ,
J.-J. Fundenberger ,
L.S. Toth  and
T. Grosdidier
A. Sarkar*
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
Satyam Suwas
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
D. Goran
Affiliation:
LEM3, Université Paul Verlaine de Metz, Ile du Saulcy, 57045 Metz Cedex 1, France
J.-J. Fundenberger
Affiliation:
LEM3, Université Paul Verlaine de Metz, Ile du Saulcy, 57045 Metz Cedex 1, France
L.S. Toth
Affiliation:
LEM3, Université Paul Verlaine de Metz, Ile du Saulcy, 57045 Metz Cedex 1, France
T. Grosdidier
Affiliation:
LEM3, Université Paul Verlaine de Metz, Ile du Saulcy, 57045 Metz Cedex 1, France
*
a)Author to whom correspondence should be addressed. Electronic mail: apusarkar@gmail.com
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Abstract

The effectiveness of different routes of equal channel angular pressing (A, Bc, and C) is studied for commercially pure copper. The stored energy and the activation energy of recrystallization for the deformed samples were quantified using differential scanning calorimetry and X-ray diffraction line profile analysis. Results of the study revealed that the dislocation density and the stored energy are higher in the case of route Bc deformed sample. The activation energy for recrystallization is lower for route Bc.

Keywords

equal channel angular pressingdifferential scanning calorimetryX-ray diffraction line profile analysisstored energy

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Type
Technical Articles
Information
Powder Diffraction , Volume 27 , Issue 3 , September 2012 , pp. 194 - 199
Copyright
Copyright © International Centre for Diffraction Data 2012

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