Elastic property and its response to pressure in a typical bulk metallic glass

Acoustic velocities, elastic constants and thermodynamic parameters upon pressure up to 2 GPa of typical Zr 41Ti 14Cu 12.5Ni 10Be 22.5 bulk metallic glass (BMG) have been studied by using a pulse echo overlap method. The results indicate that the glass forming ability (GFA) has a relation with the e...

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Veröffentlicht in:	Acta materialia 2004-02, Vol.52 (3), p.715-719
Hauptverfasser:	Hua Wang, Wei, Li, F.Y, Pan, M.X, Zhao, D.Q, Wang, Ru Ju
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic method Bulk metallic glasses Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Equation of state Equations of state, phase equilibria, and phase transitions Exact sciences and technology Glass transitions Glasses (including metallic glasses) Materials science Physics Specific materials Specific phase transitions
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Beschreibung
Zusammenfassung:	Acoustic velocities, elastic constants and thermodynamic parameters upon pressure up to 2 GPa of typical Zr 41Ti 14Cu 12.5Ni 10Be 22.5 bulk metallic glass (BMG) have been studied by using a pulse echo overlap method. The results indicate that the glass forming ability (GFA) has a relation with the elastic constants for a glass forming system. The compression curve of the BMG is interposed among its components, and the BMG exhibits small volume changes upon pressure, confirming that the BMG has similar atomic close-packed configurations with elements which may closely related to the origin of its excellent GFA.
ISSN:	1359-6454 1873-2453
DOI:	10.1016/j.actamat.2003.10.008