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https://doi.org/10.1016/j.jnoncrysol.2008.04.013
Title: | A new composition zone of bulk metallic glass formation in the Cu-Zr-Ti ternary system and its correlation with the eutectic reaction | Authors: | Dai, C.-L. Guo, H. Li, Y. Xu, J. |
Keywords: | Alloys Calorimetry Glass transition Phases and equilibria Scanning electron microscopy Transition metals X-ray diffraction |
Issue Date: | 1-Aug-2008 | Citation: | Dai, C.-L., Guo, H., Li, Y., Xu, J. (2008-08-01). A new composition zone of bulk metallic glass formation in the Cu-Zr-Ti ternary system and its correlation with the eutectic reaction. Journal of Non-Crystalline Solids 354 (31) : 3659-3665. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jnoncrysol.2008.04.013 | Abstract: | A new composition region of bulk metallic glass formation, around Cu52Zr40Ti8, was discovered in the Cu-Zr-Ti ternary system, for which monolithic bulk metallic glass rods of 4 mm in diameter can be fabricated using copper mold casting. The solidification of the Cu52Zr40Ti8 deeply-undercooled liquid mainly undergoes a univariant eutectic reaction, (L → Cu10Zr7 + CuZr), even though this composition was predicted to be a ternary eutectic point (L → Cu10Zr7 + CuZr + Cu2ZrTi) by CALPHAD calculations. With respect to the deep-eutectic reaction of (L → Cu10Zr7 + CuZr) in the Cu-Zr binary alloys, alloying of Ti has a significant effect on further stabilizing the liquid, as indicated as a drop of the univariant eutectic groove, limiting the coupled growth of two crystalline phases, hence increasing the glass-forming ability. © 2008 Elsevier B.V. All rights reserved. | Source Title: | Journal of Non-Crystalline Solids | URI: | http://scholarbank.nus.edu.sg/handle/10635/86175 | ISSN: | 00223093 | DOI: | 10.1016/j.jnoncrysol.2008.04.013 |
Appears in Collections: | Staff Publications |
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