Influence of the shot-peening intensity on the structure and near-surface mechanical properties of Ti40Zr10Cu38Pd12 bulk metallic glass
González, Sergio (Universitat Autònoma de Barcelona. Departament de Física)
Fornell Beringues, Jordina (Universitat Autònoma de Barcelona. Departament de Física)
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física)
Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física)
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física)
Greer, A. L. (University of Cambridge. Department of Materials Science and Metallurgy)
Belzunce, F. J. (Universidad de Oviedo. Instituto Universitario de Tecnología Industrial de Asturias)
Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats)

Date:	2013
Abstract:	Shot-peening (SP) changes the near-surface structure and mechanical properties of a Ti40Zr10 Cu 38Pd12 bulk metallic glass. Near the surface, the hardness, Young's modulus, and elastic strain limit are all reduced. Measurements of the heat of relaxation show that an exceptionally high stored energy of cold work can be induced, implying a large increase in free volume. At the highest SP intensity there is partial nanocrystallization enabled by the increased free volume and not by the increase in temperature.
Grants:	Ministerio de Economía y Competitividad MAT2011-27380-C02-01 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-1292
Note:	This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Crystallization ; Amorphous metals ; Hardness ; Glasses ; Plasticity ; Copper ; Nanotechnology
Published in:	Applied physics letters, Vol. 103, Issue 21 (November 2013) , art. 211907, ISSN 1077-3118

DOI: 10.1063/1.4833017

5 p, 1.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Research articles
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