Crystallization behavior and thermal stability of two-glassy phase Zr-based bulk metallic glasses

P. H. Tsai, I. S. Huang, T. H. Li, J. S.C. Jang, J. C. Huang, K. C. Hsieh

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Based on the thermodynamic calculation, two phase separated Zr-based BMGs (Zr63.8Ni16.2Cu15Al5 and Zr 66Cu15.3Ni8.7Al10) which developed by the authors previous study were selected for investigating their crystallization behavior and thermal stabilities by means of differential scanning calorimetry (DSC), and X-ray diffractometry. The results show that the Zr66Cu15.3Ni8.7Al10 amorphous alloy exhibits higher GFA than the Zr63.8Ni16.2Cu 15Al5 amorphous alloy. But the Zr63.8Ni 16.2Cu15Al5 amorphous alloy presents higher activation energy of crystallization (227 kJ/mole and 188 kJ/mole for Zr 63.8Ni16.2Cu15Al5 and Zr 66Cu15.3Ni8.7Al10 BMGs, respectively). However, Zr66Cu15.3Ni8.7Al 10 amorphous alloy contains less atomic percentage of Cu and Ni elements (with positive heat of mixing) may result in forming less volume phase separation as well less interface area between these separated amorphous phase. Overall, the Zr66Cu15.3Ni8.7Al10 amorphous alloy exhibits longer incubation time at higher annealing temperature in comparison with the Zr63.8Ni16.2Cu15Al 5 amorphous alloy, suggesting that the amorphous alloy which contains fewer amounts of Cu and Ni elements would have better thermal stability.

原文???core.languages.en_GB???
主出版物標題THERMEC 2009 Supplement
頁面562-567
頁數6
DOIs
出版狀態已出版 - 2010
事件6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
持續時間: 25 8月 200929 8月 2009

出版系列

名字Advanced Materials Research
89-91
ISSN(列印)1022-6680

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
國家/地區Germany
城市Berlin
期間25/08/0929/08/09

指紋

深入研究「Crystallization behavior and thermal stability of two-glassy phase Zr-based bulk metallic glasses」主題。共同形成了獨特的指紋。

引用此