Murty, B. S. ; Kim, W. T. ; Kim, D. H. ; Hono, K. (2001) Nanocrystalline icosahedral phase formation in melt spun Ti-Zr-Ni alloys Materials Transactions, 42 (2). pp. 372-375. ISSN 1345-9678
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Official URL: http://www.jim.or.jp/journal/e/42/02/372.html
Abstract
The paper reports Icosahedral phase (i-phase) formation in the nanocrystalline state in Ti55Zr20Ni25 and Zr55Ti25Ni20 alloys. While nanocrystalline i-phase forms directly from the melt during melt spinning at low wheel velocity of 20 m/s, nanoquasicrystallization of amorphous phase has been observed on subsequent annealing after melt spinning at higher wheel velocities of 30 and 40 m/s. The i-phase is stable up to 873 K in Ti-rich alloy, while it transforms to crystalline phases in Zr-rich alloy below this temperature. The i-phase formed both directly from the melt and from the amorphous phase is much finer in Zr-rich alloy compared to Ti-rich alloy.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Japan Institute of Metals. |
| Keywords: | Metallic Glass; Quasicrystal; Melt Spinning; Phase Transformations; Transmission Electron Microscopy (TEM) |
| ID Code: | 73794 |
| Deposited On: | 07 Dec 2011 04:50 |
| Last Modified: | 07 Dec 2011 04:50 |
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