Comparative studies of crystallization of a bulk Zr-Al-Ti-Cu-Ni amorphous alloy
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 1183-1189 |
| Journal / Publication | Intermetallics |
| Volume | 12 |
| Issue number | 10-11 SPEC. ISS. |
| Publication status | Published - Oct 2004 |
| Externally published | Yes |
Link(s)
Abstract
The recrystallization and associated nanoindentation behavior of a Zr-10Al-5Ti-17.9Cu-14.6Ni (at.%) bulk amorphous alloy was investigated using in situ transmission electron microscopy and high-temperature nanoindentation. The onset of recrystallization occurs around 710 K, with the formation of Zr 2Cu, Al3Zr4, and Ni10Zr7. Nanoindentation hardness and elastic modulus were obtained as a function of temperature from 298 to 723 K. The hardness was measured to be ∼7.5 GPa and found unchanged at temperatures below 673 K, but softened rapidly and decreased to 5 GPa at 723 K. These results can be correlated very well with the onset of recrystallization of this alloy at ∼700 K. The present study demonstrates that transmission electron microscopy, hot-stage nanoindentation, and X-ray diffraction are supplementary techniques for the study of glass relaxation and crystallization of metallic glasses. © 2004 Elsevier Ltd. All rights reserved.
Research Area(s)
- B. Glasses, metallic, B. Mechanical properties at high temperatures, B. Phase identification, C. Recrystallization and recovery (including grain growth), F. Electron microscopy, transmission
Bibliographic Note
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Citation Format(s)
Comparative studies of crystallization of a bulk Zr-Al-Ti-Cu-Ni amorphous alloy. / Nieh, T. G.; Iwamoto, C.; Ikuhara, Y.; Lee, K. W.; Chung, Y. W.
In: Intermetallics, Vol. 12, No. 10-11 SPEC. ISS., 10.2004, p. 1183-1189.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
