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

Dudamell, N.V.; Ulacia, I.; Galvez Diaz-Rubio, Francisco; Yi, S.; Bohlen, J.; Letzig, D.; Hurtado, I. y 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.

Descripción

Título: Influence of texture on the recrystallization mechanisms in an AZ31 Mg sheet alloy at dynamic rates
Autor/es:
  • Dudamell, N.V.
  • Ulacia, I.
  • Galvez Diaz-Rubio, Francisco
  • Yi, S.
  • Bohlen, J.
  • Letzig, D.
  • Hurtado, I.
  • Pérez Prado, María Teresa
Tipo de Documento: Artículo
Título de Revista/Publicación: Materials Science and Engineering: A
Fecha: 15 Enero 2012
Volumen: 532
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ciencia de los Materiales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 19083
Identificador DC: http://oa.upm.es/19083/
Identificador OAI: oai:oa.upm.es:19083
Identificador DOI: 10.1016/j.msea.2011.11.018
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0921509311012391
Depositado por: Memoria Investigacion
Depositado el: 30 Oct 2013 09:22
Ultima Modificación: 29 Sep 2014 18:35
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