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

✍ Scribed by Myoung-Ryul Ok; Jin-Yoo Suh; Sung Jae Chung; Young Su Ji; Kyung Tae Hong

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 828 KB
• Volume: 454-455
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/j.msea.2006.10.153

✦ Synopsis

Bulk metallic glasses are adequate for micro-forming because of the viscous flow in the supercooled liquid state. The deformation behavior of Zr 41 Ti 14 Cu 12.5 Ni 10 Be 22.5 alloy under compression in the supercooled liquid state were investigated by using DSC and TMA. Based on the deformation behavior, micro-forming process of Zr 41 Ti 14 Cu 12.5 Ni 10 Be 22.5 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.