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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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Published in: | Scientific reports 2013-06, Vol.3 (1), p.1983-1983, Article 1983 |
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container_end_page | 1983 |
container_issue | 1 |
container_start_page | 1983 |
container_title | Scientific reports |
container_volume | 3 |
creator | 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. |
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. |
doi_str_mv | 10.1038/srep01983 |
format | article |
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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.</creator><creatorcontrib>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. ; Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)</creatorcontrib><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.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep01983</identifier><identifier>PMID: 23760427</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/1023/1026 ; 639/301/119/997 ; 639/301/923/218 ; 639/766/25 ; Aluminum alloys ; APPLIED PHYSICS ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; Crystallization ; Enthalpy ; GLASSES ; Humanities and Social Sciences ; Iron alloys ; MAGNETIC PROPERTIES AND MATERIALS ; MATERIALS SCIENCE ; METALS AND ALLOYS ; multidisciplinary ; Nucleation ; Science ; Science & Technology - Other Topics ; VOCs ; Volatile organic compounds</subject><ispartof>Scientific reports, 2013-06, Vol.3 (1), p.1983-1983, Article 1983</ispartof><rights>The Author(s) 2013</rights><rights>Copyright Nature Publishing Group Jun 2013</rights><rights>Copyright © 2013, Macmillan Publishers Limited. 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X.</au><au>Gao, J. E.</au><au>Wu, Y.</au><au>Jiao, Z. B.</au><au>Ma, D.</au><au>Stoica, A. D.</au><au>Wang, X. L.</au><au>Ren, Y.</au><au>Miller, M. K.</au><au>Lu, Z. P.</au><aucorp>Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2013-06-13</date><risdate>2013</risdate><volume>3</volume><issue>1</issue><spage>1983</spage><epage>1983</epage><pages>1983-1983</pages><artnum>1983</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>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.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>23760427</pmid><doi>10.1038/srep01983</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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subjects | 639/301/1023/1026 639/301/119/997 639/301/923/218 639/766/25 Aluminum alloys APPLIED PHYSICS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Crystallization Enthalpy GLASSES Humanities and Social Sciences Iron alloys MAGNETIC PROPERTIES AND MATERIALS MATERIALS SCIENCE METALS AND ALLOYS multidisciplinary Nucleation Science Science & Technology - Other Topics VOCs Volatile organic compounds |
title | Enhancing glass-forming ability via frustration of nano-clustering in alloys with a high solvent content |
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