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The correlation between the pressure sensitivity and the fragility/glass transition temperature in bulk metallic glasses

Authors:	LF Liu ZP Cai HQ Li GY Zhang

Institution:	^a School of Electromechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, PR China ^b Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, Hunan, PR China ^c Engineering Research Center of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, Hunan, PR China

Abstract:	The correlations between the pressure sensitivity and the fragility/glass transition temperature have been addressed in various bulk metallic glasses in the present work. The results demonstrate that the pressure sensitivity of bulk metallic glasses is closely related to both the fragility index (m) and the glass transition temperature (T_g). The physical origin of the correlations has been discussed from their disordered structure, which is determined by the glass transition behavior and the glass transition temperature.

Keywords:	Metallic glasses Pressure sensitivity Fragility Glass transition
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