New thermodynamic interpretation of T-0 curves in glass forming alloys

This study presents a new thermodynamic interpretation of T-0 curves in eutectic phase diagrams. By analyzing the Gibbs energy variation of liquid-solid transition in energy-composition schematics, we illustrated the thermodynamic particularities of the T-0 curves. They are experimentally observed to be boundaries between the partitionless crystallization and amorphous areas in phase diagrams. Our interpretation basically rationalizes the capability of T-0 curves in predicting new glass forming systems and their glass forming regions. Good agreements between the thermodynamic indicator phase diagram + T-0 curves for metallic glasses and the experimental information were obtained in typical systems. (C) 2021 Elsevier B.V. All rights reserved