Thermal expansion and indentation-induced free volume in Zr-based metallic glasses measured by real-time diffraction using synchrotron radiation

K. Hajlaoui; T. Benameur; G. Vaughan; A.R. Yavari

doi:10.1016/j.scriptamat.2004.07.008

$Thermal expansion and indentation-induced free volume in Zr-based metallic glasses measured by real-time diffraction using synchrotron radiation$

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Thermal expansion and indentation-induced free volume in Zr-based metallic glasses measured by real-time diffraction using synchrotron radiation

K. Hajlaoui, T. Benameur, G. Vaughan and A.R. Yavari

Scripta materialia, Vol.51(9), pp.843-848

01/11/2004

DOI: https://doi.org/10.1016/j.scriptamat.2004.07.008

Abstract

Free volume

Metallic glass

Plastic deformation

Structural relaxation

Synchrotron radiation

Changes in thermal expansion coefficient and excess free volume content during in situ heating–cooling cycles of metallic glasses in the as-quenched state and after indentation were measured in the temperature range between 350 and 670 K by real-time diffraction. It was found that deformation produced by an array of ball indentations generate more than 37% increase of free volume in Zr-based glassy ribbons.

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Title: Thermal expansion and indentation-induced free volume in Zr-based metallic glasses measured by real-time diffraction using synchrotron radiation
Creators - without role: K. Hajlaoui - Laboratoire de Génie Mécanique LGM-MA05, ENIM, Av. Ibn El Jazzar, 5019 Monastir, Tunisie
T. Benameur - Laboratoire de Génie Mécanique LGM-MA05, ENIM, Av. Ibn El Jazzar, 5019 Monastir, Tunisie
G. Vaughan - European Synchrotron Radiation Facilities (ESRF), 38042 Grenoble, France
A.R. Yavari - BP
Publication Details: Scripta materialia, Vol.51(9), pp.843-848
Publisher: Elsevier Ltd
Identifiers: 9916134408331
Academic Unit: Imam Mohammad Ibn Saud Islamic University (IMSIU)
Language: English
Resource Type: Journal article