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Relaxation of internal friction and shear viscosity in Zr57Nb5Al10Cu15.4Ni12.6 metallic glass

Autor/a

Duan, Y.J.

Qiao, Jichao

Crespo Artiaga, Daniel

Pelletier, J. M.

Otros/as autores/as

Universitat Politècnica de Catalunya. Departament de Física

Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials

Fecha de publicación

2020-09-01

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Resumen

Relaxation of internal friction of Zr57Nb5Al10Cu15.4Ni12.6 metallic glass was investigated by mechanical spectroscopy. The stress relaxation of internal friction with different aging temperature was described by Kohlrausch-Williams-Watts (KWW) equation. The shear viscosity behavior during linear heating can be interpreted as a result of the local irreversible structural relaxation with distributed activation energies. The results show that the dynamic heterogeneity and the atomic mobility are stimulated by the increasing annealing temperature.

Postprint (author's final draft)

Tipo de documento

Article

Lengua

Inglés

Materias y palabras clave

Àrees temàtiques de la UPC::Física; Metallic glasses; Metallic glasses; Internal friction; Mechanical relaxation; Structural heterogeneity; Shear viscosity; Vidres metàl·lics

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https://www.sciencedirect.com/science/article/abs/pii/S0966979520300819

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Derechos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

Open Access

Attribution-NonCommercial-NoDerivs 3.0 Spain

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E-prints [73055]