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Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content

The glass-forming ability (GFA) of alloys with a high-solvent content such as soft magnetic Fe-based and Al-based alloys is usually limited due to strong formation of the solvent-based solid solution phase. Herein, we report that the GFA of soft magnetic Fe-based alloys (with >70 at.% Fe to ensur...

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Autores principales: Li, H. X., Gao, J. E., Wu, Y., Jiao, Z. B., Ma, D., Stoica, A. D., Wang, X. L., Ren, Y., Miller, M. K., Lu, Z. P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3680804/
https://www.ncbi.nlm.nih.gov/pubmed/23760427
http://dx.doi.org/10.1038/srep01983
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author Li, H. X.
Gao, J. E.
Wu, Y.
Jiao, Z. B.
Ma, D.
Stoica, A. D.
Wang, X. L.
Ren, Y.
Miller, M. K.
Lu, Z. P.
author_facet Li, H. X.
Gao, J. E.
Wu, Y.
Jiao, Z. B.
Ma, D.
Stoica, A. D.
Wang, X. L.
Ren, Y.
Miller, M. K.
Lu, Z. P.
author_sort Li, H. X.
collection PubMed
description The glass-forming ability (GFA) of alloys with a high-solvent content such as soft magnetic Fe-based and Al-based alloys is usually limited due to strong formation of the solvent-based solid solution phase. Herein, we report that the GFA of soft magnetic Fe-based alloys (with >70 at.% Fe to ensure large saturation magnetization) could be dramatically improved by doping with only 0.3 at.% Cu which has a positive enthalpy of mixing with Fe. It was found that an appropriate Cu addition could enhance the liquid phase stability and crystallization resistance by destabilizing the α-Fe nano-clusters due to the necessity to redistribute the Cu atoms. However, excessive Cu doping would stimulate nucleation of the α-Fe nano-clusters due to the repulsive nature between the Fe and Cu atoms, thus deteriorating the GFA. Our findings provide new insights into understanding of glass formation in general.
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spelling pubmed-36808042013-06-13 Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content Li, H. X. Gao, J. E. Wu, Y. Jiao, Z. B. Ma, D. Stoica, A. D. Wang, X. L. Ren, Y. Miller, M. K. Lu, Z. P. Sci Rep Article The glass-forming ability (GFA) of alloys with a high-solvent content such as soft magnetic Fe-based and Al-based alloys is usually limited due to strong formation of the solvent-based solid solution phase. Herein, we report that the GFA of soft magnetic Fe-based alloys (with >70 at.% Fe to ensure large saturation magnetization) could be dramatically improved by doping with only 0.3 at.% Cu which has a positive enthalpy of mixing with Fe. It was found that an appropriate Cu addition could enhance the liquid phase stability and crystallization resistance by destabilizing the α-Fe nano-clusters due to the necessity to redistribute the Cu atoms. However, excessive Cu doping would stimulate nucleation of the α-Fe nano-clusters due to the repulsive nature between the Fe and Cu atoms, thus deteriorating the GFA. Our findings provide new insights into understanding of glass formation in general. Nature Publishing Group 2013-06-13 /pmc/articles/PMC3680804/ /pubmed/23760427 http://dx.doi.org/10.1038/srep01983 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Li, H. X.
Gao, J. E.
Wu, Y.
Jiao, Z. B.
Ma, D.
Stoica, A. D.
Wang, X. L.
Ren, Y.
Miller, M. K.
Lu, Z. P.
Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title_full Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title_fullStr Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title_full_unstemmed Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title_short Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
title_sort enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3680804/
https://www.ncbi.nlm.nih.gov/pubmed/23760427
http://dx.doi.org/10.1038/srep01983
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