Jeong, HT Fleury, E Kim, WT Kim, DH Hono, K 2024-01-21T06:08:38Z 2024-01-21T06:08:38Z 2021-09-05 2004-11 0031-9015 https://pubs.kist.re.kr/handle/201004/137100 In order to investigate the mechanical relaxation behavior of the Zr36Ti24Be40 amorphous alloy, the dynamic mechanical properties were measured using dynamic mechanical analyzer (DMA). From the data collected during isothermal multi-frequency dynamic mechanical measurements, the master curves for storage and loss moduli over a broad range of temperature were constructed using the time-temperature superposition (TTS) principle. The temperature dependence of the shift factor was found to follow the Arrhenius relationship and the activation energies, calculated from the Arrhenius relationship, were about 93 and 390 kJ/mol for low temperature mechanical relaxation and viscous flow, respectively. According to the temperature dependence of the shift factor above T-g, no evidence for phase separation was found. The fragility index was also calculated from the relationship between shift factors and temperature and was found to be m approximate to 34, suggesting that the Zr36Ti24Be40 amorphous alloy can be classified into the 'strong' glass. English PHYSICAL SOC JAPAN BULK METALLIC-GLASS THERMALLY STIMULATED RECOVERY HIGH-MOLECULAR-WEIGHT VISCOELASTIC PROPERTIES TRANSITION TEMPERATURE SUPERCOOLED LIQUID PHASE-SEPARATION CREEP-BEHAVIOR POLYMERS CRYSTALLIZATION Study on the mechanical relaxations of a Zr36Ti24Be40 amorphous alloy by time-temperature superposition principle Article 10.1143/JPSJ.73.3192 1 JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, v.73, no.11, pp.3192 - 3197 JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 73 11 3192 3197 scie scopus 000225352200048 2-s2.0-84974559774 Physics, Multidisciplinary Physics Article BULK METALLIC-GLASS THERMALLY STIMULATED RECOVERY HIGH-MOLECULAR-WEIGHT VISCOELASTIC PROPERTIES TRANSITION TEMPERATURE SUPERCOOLED LIQUID PHASE-SEPARATION CREEP-BEHAVIOR POLYMERS CRYSTALLIZATION metallic glass mechanical relaxation dynamic mechanical analyzer (DMA) time temperature superposition (TTS) principle fragility index