Per accedir als documents amb el text complet, si us plau, seguiu el següent enllaç: http://hdl.handle.net/2117/84527

Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel
Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
The temperature dependence of the relaxation times of Cu46Zr46Al8 glass was measured by means of mechanical spectroscopy and static stress-relaxation measurements. The weak intensity of secondary relaxation in this alloy allows us to correlate the characteristic times of dynamic and static measurements of primary relaxation. The glassy dynamics of an isoconfigurational state are found to follow an Adam-Gibbs-Vogel expression with the glassy state defined by a fictive temperature. The combination of both measurements proves that, in the frequency domain, the relaxation response can be well described by a single relaxation function above and below the glass transition. The change in relaxation times as function of the fictive temperature and the corresponding effects on the mechanical behavior are estimated and discussed. (C) 2014 Elsevier B.V. All rights reserved.
Peer Reviewed
Àrees temàtiques de la UPC::Física
Metallic glasses
Amorphous alloys
Aging
Johari-Goldstein relaxation
Mechanical spectroscopy
Glass dynamics
JOHARI-GOLDSTEIN RELAXATION
STRUCTURAL RELAXATION
THERMAL-STABILITY
BETA-RELAXATION
TEMPERATURE
VISCOSITY
LIQUIDS
PLASTICITY
TRANSITION
DYNAMICS
Vidres metàl·lics
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/submittedVersion
Article
         

Mostra el registre complet del document

Documents relacionats

Altres documents del mateix autor/a

Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel; Qiao, Jichao; Evenson, Zach; Ruta, Beatrice
Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel
Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel; Qiao, Jichao