On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.contributor.author	Ostapovets, Andriy
dc.contributor.author	Buršík, Jirí
dc.contributor.author	Krahula, Karel
dc.contributor.author	Král, Lubomír
dc.contributor.author	Serra Tort, Ana María
dc.date	2017-02
dc.identifier.citation	Ostapovets, A., Buršík, J., Krahula, K., Král, L., Serra, A. On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg. "Philosophical magazine", Febrer 2017, vol. 97, núm. 14, p. 1088-1101.
dc.identifier.citation	0031-8086
dc.identifier.citation	10.1080/14786435.2017.1290846
dc.identifier.uri	http://hdl.handle.net/2117/103541
dc.language.iso	eng
dc.relation	http://www.tandfonline.com/doi/full/10.1080/14786435.2017.1290846?src=recsys
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject	Magnesium--Metallurgy
dc.subject	Magnesium
dc.subject	twinning
dc.subject	grain boundaries
dc.subject	plastic deformation
dc.subject	habit plane
dc.subject	Magnesi
dc.title	On the relationship between {1 1 2¯ 2} and {1 1 2¯ 6} conjugate twins and double extension twins in rolled pure Mg
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	This is an Accepted Manuscript of an article published by Taylor & Francis Group in Philosophical Magazine on February 2017, available online at: http://www.tandfonline.com/10.1080/14786435.2017.1290846
dc.description.abstract	The paper presents a new type of twin-like objects observed in rolled pure magnesium. They have {11¯26} and {11¯22} habit planes and their misorientations to the matrix are close to 56° and 63° about ¿10¯10¿ axis, respectively. The ad hoc performed theoretical analysis and atomic simulations allow to interpret the objects as {10¯12}-{10¯12} double twins formed by the simultaneous action of two twinning shears with completely re-twinned volume of primary twin. The observed inclinations from the ideal misorientations for such double twins can be explained by the compliance of the strain invariant condition in the twin boundary. It seems plausible that, once the double twin is formed, its twin boundaries are hard to move by glide of twinning disconnections. If so, these twins represent obstacles for the motion of crystal dislocations increasing the hardness of the metal.
dc.description.abstract	Peer Reviewed

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