Micro-forming and surface evaluation of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass

Authors
Ok, Myoung-RyulSuh, Jin-YooChung, Sung JaeJi, Young SuHong, Kyung Tae
Issue Date
2007-04-25
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.454, pp.14 - 18
Abstract
Bulk metallic glasses are adequate for micro-forming because of the viscous flow in the supercooled liquid state. The deformation behavior of Zr41Ti14Cu12.5Ni10Be22.5 alloy under compression in the supercooled liquid state were investigated by using DSC and TMA. Based on the deformation behavior, micro-forming process of Zr41Ti14Cu12.5Ni10Be22.5 alloy was designed and carried out. The surface of the deformed specimens were analyzed by SEM, XRD, and AFM. The roughness of the specimen surface exhibited a correlation with the total deformation and a new parameter reflecting roughness evolution of the deformed surface was suggested as the relative comparison among different forming conditions. (c) 2006 Elsevier B.V. All rights reserved.
Keywords
SUPERCOOLED LIQUID-STATE; AMORPHOUS-ALLOYS; VISCOUS-FLOW; CRYSTALLIZATION; FORMABILITY; RELAXATION; VISCOSITY; PRESSURE; SUPERCOOLED LIQUID-STATE; AMORPHOUS-ALLOYS; VISCOUS-FLOW; CRYSTALLIZATION; FORMABILITY; RELAXATION; VISCOSITY; PRESSURE; viscosity; micro-forming; Vitreloy 1; roughness
ISSN
0921-5093
URI
https://pubs.kist.re.kr/handle/201004/134441
DOI
10.1016/j.msea.2006.10.153
Appears in Collections:
KIST Article > 2007
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