Lee, SW Huh, MY Fleury, E Lee, JC 2024-01-21T03:42:46Z 2024-01-21T03:42:46Z 2021-09-02 2006-01 1359-6454 https://pubs.kist.re.kr/handle/201004/135848 This study examined the parameter governing the plasticity observed in various Cu-Zr containing monolithic amorphous alloys. All the alloys were fully amorphous in their as-east condition but exhibited different plastic strains. Microscopic observations of the quasistatically compressed alloys showed abundant nanocrystallites in the amorphous matrices in the alloys that exhibited pronounced plasticity. On the other hand, insignificant changes in the microstructure were observed in the alloy that did not show plasticity. The mechanism for the formation of these deformation-induced nanocrystallites was examined from the viewpoints of thermodynamics and kinetics. The role of the deformation-induced nanocrystallites on the plasticity of the amorphous alloy was examined using high-resolution transmission electron microscopy. The results demonstrate that compressive loading facilitates nanocrystallization in monolithic Cu-Zr containing amorphous alloys, resulting in plasticity. The parameter governing the plasticity in these monolithic Cu-Zr containing amorphous alloys lies in the activation energy for the overall crystallization process. (c) 2005 Published by Elsevier Ltd on behalf of Acta Materialia Inc. English PERGAMON-ELSEVIER SCIENCE LTD METALLIC GLASSES ROOM-TEMPERATURE ENHANCED PLASTICITY MATRIX COMPOSITE NANOCRYSTALLIZATION DEFORMATION PRESSURE BEHAVIOR KINETICS Crystallization-induced plasticity of Cu-Zr containing bulk amorphous alloys Article 10.1016/j.actamat.2005.09.007 1 ACTA MATERIALIA, v.54, no.2, pp.349 - 355 ACTA MATERIALIA 54 2 349 355 scie scopus 000234785200007 2-s2.0-28844505026 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article METALLIC GLASSES ROOM-TEMPERATURE ENHANCED PLASTICITY MATRIX COMPOSITE NANOCRYSTALLIZATION DEFORMATION PRESSURE BEHAVIOR KINETICS bulk amorphous alloys crystallization compression test HREM DSC