Na, J. H. Park, E. S. Kim, Y. C. Fleury, E. Kim, W. T. Kim, D. H. 2024-01-21T00:01:23Z 2024-01-21T00:01:23Z 2021-08-31 2008-02 0884-2914 https://pubs.kist.re.kr/handle/201004/133806 The correlation among apparent global plasticity, Poisson's ratio, and fragility in monolithic bulk metallic glass (BMG) alloys has been investigated in the present study. The shear and bulk moduli in monolithic Cu-based BMG alloys have been measured by resonant ultrasound spectroscopy (RUS) and ultrasonic technique. The Cu43Zr43Al7Ag7 BMG alloy showing a large apparent global plasticity (similar to 8%) exhibits a high Poisson's ratio when compared with that Of Cu43Zr43Al7Be7 BMG alloy. In addition, the fragility of Cu-based BMG alloys can be obtained by differential scanning calorimetry (DSC). The fragility index m of Cu43Zr43Al7Ag7 BMG alloy is slightly larger than that of Cu43Zr43Al7Be7 BMG alloy. The correlation between Poisson's ratio and fragility in BMG alloys can be presented by a simple relation of m - 17 = 14 (B-infinity/G(infinity)-1). Poisson's ratio and fragility might be regarded as an important parameter that controls global plasticity of glass-forming alloys. English CAMBRIDGE UNIV PRESS SUPERCOOLED LIQUID ELASTIC PROPERTIES FORMING ABILITY DEFORMATION ENHANCEMENT RELAXATION PLASTICITY DEPENDENCE MODULI PHASE Poisson's ratio and fragility of bulk metallic glasses Article 10.1557/JMR.2008.0060 1 JOURNAL OF MATERIALS RESEARCH, v.23, no.2, pp.523 - 528 JOURNAL OF MATERIALS RESEARCH 23 2 523 528 scie scopus 000253010800030 2-s2.0-39749113700 Materials Science, Multidisciplinary Materials Science Article SUPERCOOLED LIQUID ELASTIC PROPERTIES FORMING ABILITY DEFORMATION ENHANCEMENT RELAXATION PLASTICITY DEPENDENCE MODULI PHASE bulk metallic glass poisson&apos s ratio fragility Cu based alloy