Aging and structural relaxation of hyper-quenched Mg65Cu25Y10 metallic glass

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.contributor	Universitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor	Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.contributor.author	Zhai, Fuqiang
dc.contributor.author	Pineda Soler, Eloi
dc.contributor.author	Ruta, Beatrice
dc.contributor.author	Gonzalez Silveira, Marta
dc.contributor.author	Crespo Artiaga, Daniel
dc.date	2014-12-05
dc.identifier.citation	Zhai, F. [et al.]. Aging and structural relaxation of hyper-quenched Mg65Cu25Y10 metallic glass. "Journal of alloys and compounds", 05 Desembre 2014, vol. 615, p. S9-S12.
dc.identifier.citation	0925-8388
dc.identifier.citation	10.1016/j.jallcom.2013.11.120
dc.identifier.uri	http://hdl.handle.net/2117/27011
dc.language.iso	eng
dc.relation	http://www.sciencedirect.com/science/article/pii/S0925838813028612
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Física
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Metallic glasses
dc.subject	Amorphous materials
dc.subject	Metals--Rapid solidification processing
dc.subject	Rapid-solidification
dc.subject	Metallic glasses
dc.subject	Relaxation kinetics
dc.subject	Alpha relaxation
dc.subject	Mechanical spectroscopy
dc.subject	DSC
dc.subject	JOHARI-GOLDSTEIN RELAXATION
dc.subject	TEMPERATURE
dc.subject	KINETICS
dc.subject	Cristalls metàl·lics
dc.subject	Solidificació de metalls
dc.title	Aging and structural relaxation of hyper-quenched Mg65Cu25Y10 metallic glass
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	The structural relaxation, glass transition and crystallization processes of Mg65Cu25Y10 metallic glass are studied by Differential Scanning Calorimetry (DSC) and Mechanical spectroscopy. The relaxation model derived from the mechanical measurements is compared with the kinetics of these transformations obtained from the DSC curves. The structural relaxation kinetics is found to be controlled by the glassy dynamics following an Adams-Gibbs-Vogel function. The glass transition and crystallization kinetics are controlled by the dynamics of the supercooled melt following a Vogel-Fulcher-Tammann behaviour. The results suggest that the microscopic processes responsible of structural relaxation and aging below the glass transition correspond to the same processes generating the a-relaxation peak. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.abstract	Peer Reviewed

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