Workability of the supercooled liquid in the Zr65Al10Ni10Cu15 bulk metallic glass

✍ Scribed by Y. Kawamura; T. Shibata; A. Inoue; T. Masumoto

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 640 KB
• Volume: 46
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/s1359-6454(97)00235-8

✦ Synopsis

AbstractÐThe workability of the supercooled liquid in metallic glass has been examined through the extrusion of a Zr 65 Al 10 Ni 10 Cu 15 at.% bulk glassy alloy with a wide supercooled liquid region. The metallic glass exhibited superplastic-like deformation behavior at high strain rates, resulting in an excellent workability. The working throughout a wide range of extrusion conditions was compatible with retaining the glass phase and the original strength. The extrusion maps and the expression between extrusion temperature, pressure and ram-speed have been established. Moreover, the features of working such as the Barus eect and the advantage of a small stepwise increase in strain rate have been revealed.