Influence of the shot-peening intensity on the structure and near-surface mechanical properties of Ti40Zr10Cu38Pd12 bulk metallic glass

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 en...

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Detalles Bibliográficos
Autores: González, Sergio, Fornell Beringues, Jordina|||0000-0002-0909-3843, Pellicer, Eva|||0000-0002-8901-0998, Suriñach, Santiago|||0000-0001-8125-0594, Baró, M. D.|||0000-0002-8636-1063, Greer, A. L., Belzunce, F. J., Sort, Jordi|||0000-0003-1213-3639
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:115882
Acceso en línea:https://ddd.uab.cat/record/115882
https://dx.doi.org/urn:doi:10.1063/1.4833017
Access Level:acceso abierto
Palabra clave:Crystallization
Amorphous metals
Hardness
Glasses
Plasticity
Copper
Nanotechnology
Descripción
Sumario: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.

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