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Anomalous Thermal Stability of Nd-Fe-Co-Al Bulk Metallic Glass | |
Wei BC(魏炳忱); Loser W,; Xia L(夏雷); Roth S; Pan M; Wang WH(汪卫华); Eckert J; Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China. | |
发表期刊 | Acta Materialia |
2002 | |
卷号 | 50期号:17页码:4357-4367 |
ISSN | 1359-6454 |
摘要 | The thermal stability of Nd60Fe20Co10Al10 bulk metallic glass (BMG) has been studied by differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), isochronal dilatation and compression tests. The results show that the glass transition of the BMG takes place quite gradually between about 460 and 650 K at a heating rate of 0.17 K/s. Several transformation processes are observed during continuous heating with the first crystallization process beginning at about 460 K, while massive crystallization takes place near the solidus temperature of the alloy. The positive heat of mixing between the two major constituents, Nd and Fe, and, consequently, a highly inhomogeneous composition of the attained amorphous phase are responsible for the anomalous thermal stability in this system. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved. |
学科领域 | 力学 |
DOI | 10.1016/S1359-6454(02)00272-0 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000178609500012 |
关键词[WOS] | SUPERCOOLED LIQUID REGION ; AMORPHOUS-ALLOYS ; MAGNETIC-PROPERTIES ; FORMING ABILITY ; MECHANICAL-PROPERTIES ; INTERNAL-FRICTION ; PHASE-SEPARATION ; VISCOUS-FLOW ; TRANSITION ; CRYSTALLIZATION |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/15867 |
专题 | 力学所知识产出(1956-2008) |
通讯作者 | Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China. |
推荐引用方式 GB/T 7714 | Wei BC,Loser W,,Xia L,et al. Anomalous Thermal Stability of Nd-Fe-Co-Al Bulk Metallic Glass[J]. Acta Materialia,2002,50,17,:4357-4367. |
APA | 魏炳忱.,Loser W,.,夏雷.,Roth S.,Pan M.,...&Wei, BC .(2002).Anomalous Thermal Stability of Nd-Fe-Co-Al Bulk Metallic Glass.Acta Materialia,50(17),4357-4367. |
MLA | 魏炳忱,et al."Anomalous Thermal Stability of Nd-Fe-Co-Al Bulk Metallic Glass".Acta Materialia 50.17(2002):4357-4367. |
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