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Characterization of Mg AZ31 Alloy ECASD Processed Using Dynamical Mechanical Analysis (DMA)

Published online by Cambridge University Press:  18 May 2015

Daniel Peláez ,
Adriana Restrepo-Osorio ,
Emigdio Mendoza ,
Cesar Isaza  and
Patricia Fernandez-Morales
Daniel Peláez
Affiliation:
Facultad de Ingeniería Mecánica, Universidad de Colombia.
Adriana Restrepo-Osorio
Affiliation:
Facultad de Ingeniería Textil, Universidad de Colombia.
Emigdio Mendoza
Affiliation:
Facultad de Ingeniería Textil, Universidad de Colombia.
Cesar Isaza
Affiliation:
Universidad Nacional de Colombia-Sede Medellín.
Patricia Fernandez-Morales*
Affiliation:
Facultad de Ingeniería Industrial, Universidad Pontificia Bolivariana, Colombia.
*
*E-mail: patricia.fernandez@upb.edu.co
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Abstract

In the present work was used Dynamical Mechanical Analysis (DMA) to study the magnesium alloy Mg AZ31-B, in plate form with a thickness of 2.5 mm. The plates were processed using Equal Channel Angular Sheet Drawing (ECASD), which is a severe plastic deformation technique, which allows imposing strain without dimensional changes to a metal plate, at room temperature with an angle of 135°. The obtained results show dependence between the storage modulus (M’), temperature and frequency used on the tests. The greater M’ values were obtained at the lower temperatures and at the higher frequency used. However, at lower frequencies M’ response is not affected by the used frequencies. At the higher temperatures there is an M’ reduction, which promotes the material deformation.

Keywords

Mgalloyphase transformationabsorptionsteel
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1766: Symposium 5B – Structural and Chemical Characterization of Metals, Alloys, and Compounds—2014 , 2015 , pp. 109 - 114
Copyright
Copyright © Materials Research Society 2015 

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