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Efficient atomic packing-chemistry coupled model and glass formation in ternary Al-based metallic glasses
N. C. Wu; D. Kan; L. Zuo; J. Q. Wang
2013
Source PublicationIntermetallics
ISSN0966-9795
Volume39Pages:1-4
AbstractAn efficient atomic packing-chemistry coupled model has been described for ternary Al-based metallic glasses based upon efficient atomic packing and electrochemical potential equalization principle. For Al-TM (transition metal)-RE (rare earth) system, RE-centered clusters are arranged in a mode of spherical periodic order, and TM atoms locate at the interstitial sites between RE-centered clusters to form an efficient atomic packing. The equalization of electrochemical potential between the RE-centered clusters and the TM-centered clusters accounts for the stability of amorphous structure. Further, complementary inverse structure is utilized to select efficient clusters and solute elements for the best glass-forming ability. The validity of this model was testified in the Al-Ni-RE (Y, Ce, La, Gd) systems. A new Al-Ni-Ho glass with a wedge thickness of about 718 mu m has been discovered at the predicted composition. (C) 2013 Elsevier Ltd. All rights reserved.
description.department[wu, n. c. ; kan, d. ; wang, j. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wu, n. c. ; zuo, l.] northeastern univ, coll mat & met, shenyang 110004, peoples r china. ; wang, jq (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; jqwang@imr.ac.cn
KeywordGlasses Metallic Alloy Design Thermal Stability Rapid Solidification Processing Structural Model Forming Ability Alloys Criterion Electronegativity Stabilization Formability Stability Rule
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71587
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
N. C. Wu,D. Kan,L. Zuo,et al. Efficient atomic packing-chemistry coupled model and glass formation in ternary Al-based metallic glasses[J]. Intermetallics,2013,39:1-4.
APA N. C. Wu,D. Kan,L. Zuo,&J. Q. Wang.(2013).Efficient atomic packing-chemistry coupled model and glass formation in ternary Al-based metallic glasses.Intermetallics,39,1-4.
MLA N. C. Wu,et al."Efficient atomic packing-chemistry coupled model and glass formation in ternary Al-based metallic glasses".Intermetallics 39(2013):1-4.
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