Thermodynamic, transport and mechanical properties of amorphous metallic alloys: Relation to the glass transition

Battezzati, Livio

doi:10.1016/j.jallcom.2009.10.036

Cited by 10 publications

(4 citation statements)

References 21 publications

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“…Extending the plot over to metallic glasses, the fit was equally satisfied providing confirmation that metallic glasses conform to the general trend of glass formers and that they rank among fragile-intermediate melts [6,13]. It is noted finally that Eq.…”

Section: Discussionmentioning

confidence: 61%

Thermal analysis, fragility and viscosity of Au-based metallic glasses

Fiore

Ichim

Battezzati

2010

Journal of Non-Crystalline Solids

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Section: Discussionmentioning

confidence: 61%

Thermal analysis, fragility and viscosity of Au-based metallic glasses

Fiore

Ichim

Battezzati

2010

Journal of Non-Crystalline Solids

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“…To exploit the excellent properties of bulk metallic glasses, a good understanding on fundamental materials properties is indispensable. For instance, the problem of shear bands discussed widely in the processing of glassy metallic alloys [10][11][12] is intimately related with the subject of the present paper. In the following, the cooperativity and fragility of metallic glass forming supercooled liquids is investigated by the bond strength-coordination number fluctuation (BSCNF) model proposed and developed in our group [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 95%

Analysis of Cooperativity in Metallic Glass Forming Liquids

Aniya

Ikeda

2014

MSF

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The relation between fragility and cooperativity of atomic motion in bulk metallic glass forming liquids is studied based on the bond strength-coordination number fluctuation model. The model describes the temperature dependence of the viscosity in terms of the mean values of the bond strength, coordination number and their fluctuations of the structural units that form the melt. According to the model, the cooperativity increases with the increase of fragility. The model estimates that the magnitude of the cooperativityNBextends approximately from 7 to 60 structural units, depending on the material. The temperature dependence ofNBfor different metallic glass forming systems reveals thatNBincreases with the decrease of temperature. The relation betweenNBand diffusivity of atoms is discussed briefly.

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“…In recent years, thanks to a wide availability of BMGs, the amount and quality of experimental data on mechanical properties have significantly improved. Several correlations among the mechanical and thermal data of MGs have been suggested, with the aim to describe the fundamental aspects of the deformation processes [20][21][22][23][24][25][26][27][28][29]. Therefore, it is basically possible to consider the correlation between the thermodynamic properties and pressure sensitivity of plastic deformation in BMGs.…”

mentioning

confidence: 99%

“…Therefore, it is basically possible to consider the correlation between the thermodynamic properties and pressure sensitivity of plastic deformation in BMGs. In the present work, we have made an attempt to examine this relationship, and discussed the physical origins of the pressure sensitivity.Based on the relevant data in the literature [22][23][24][25][26][27][28][29][30][31][32], including the Vickers hardness H v , yield strength σ y and fragility index m (Table 1), the relationship between the plastic constraint factor C and the fragility index m is plotted in Fig. 1.…”

mentioning

confidence: 99%