Influence of texture on the recrystallization mechanisms in an AZ31 Mg sheet alloy at dynamic rates

Dudamell, N.V. and Ulacia, I. and Galvez Diaz-Rubio, Francisco and Yi, S. and Bohlen, J. and Letzig, D. and Hurtado, I. and Pérez Prado, María Teresa (2012). Influence of texture on the recrystallization mechanisms in an AZ31 Mg sheet alloy at dynamic rates. "Materials Science and Engineering: A", v. 532 ; pp. 528-535. ISSN 0921-5093. https://doi.org/10.1016/j.msea.2011.11.018.

Description

Title: Influence of texture on the recrystallization mechanisms in an AZ31 Mg sheet alloy at dynamic rates
Author/s:
  • Dudamell, N.V.
  • Ulacia, I.
  • Galvez Diaz-Rubio, Francisco
  • Yi, S.
  • Bohlen, J.
  • Letzig, D.
  • Hurtado, I.
  • Pérez Prado, María Teresa
Item Type: Article
Título de Revista/Publicación: Materials Science and Engineering: A
Date: 15 January 2012
ISSN: 0921-5093
Volume: 532
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An AZ31 rolled sheet alloy has been tested at dynamic strain rates View the MathML source at 250 °C up to various intermediate strains before failure in order to investigate the predominant deformation and restoration mechanisms. In particular, tests have been carried out in compression along the rolling direction (RD), in tension along the RD and in compression along the normal direction (ND). It has been found that dynamic recrystallization (DRX) takes place despite the limited diffusion taking place under the high strain rates investigated. The DRX mechanisms and kinetics depend on the operative deformation mechanisms and thus vary for different loading modes (tension, compression) as well as for different relative orientations between the loading axis and the c-axes of the grains. In particular, DRX is enhanced by the operation of 〈c + a〉 slip, since cross-slip and climb take place more readily than for other slip systems, and thus the formation of high angle boundaries is easier. DRX is also clearly promoted by twinning.

More information

Item ID: 19083
DC Identifier: http://oa.upm.es/19083/
OAI Identifier: oai:oa.upm.es:19083
DOI: 10.1016/j.msea.2011.11.018
Official URL: http://www.sciencedirect.com/science/article/pii/S0921509311012391
Deposited by: Memoria Investigacion
Deposited on: 30 Oct 2013 09:22
Last Modified: 29 Sep 2014 18:35
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