Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region
文献类型：期刊论文
| 作者 | H. W. Yang ; S. C. Tjong ; J. Q. Wang |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2005 |
| 卷号 | 406期号:1-2页码:160-165 |
| 关键词 | metallic glasses devitrification kinetics nanocrystals amorphous-alloys crystallization strength |
| ISSN号 | 0921-5093 |
| 中文摘要 | The effect of Fe additions on glass formation and stability of an amorphous Al85Ni5Y8Co2 alloy with a large supercooled liquid region has been studied using differential scanning calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM) techniques. It was found that the Fe content significantly affects the primary crystallization kinetics of this alloy, but little on its glass-forming ability (GFA). Interestingly, an Al85Ni5Y6Fe2Co2 glassy alloy, with a wide supercooled liquid region of 24 K and a superior stability against primary crystallization up to 570 K, was synthesized. Its devitrification kinetics appears to be proceeded by two-stage primary reaction over the temperature range of 570-645 K through a continuous process of the nucleation and growth of Al nanocrystals, followed by the concurrence of Al-3(Ni, Fe), Al9Co2 and Al3Y intermetallics. The formation of such a more stable glass due to partial replacement of Y by Fe in Al85Ni5Y8Co2 is proposed to be associated with the amorphous structure and the solute concentration distribution feature. (c) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35164]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. W. Yang,S. C. Tjong,J. Q. Wang. Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2005,406(1-2):160-165. |
| APA | H. W. Yang,S. C. Tjong,&J. Q. Wang.(2005).Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,406(1-2),160-165. |
| MLA | H. W. Yang,et al."Influence of Fe addition on glassy stability of an Al85Ni5Y8Co2 metallic glass with a large supercooled liquid region".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 406.1-2(2005):160-165. |
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来源：金属研究所
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