Medium range ordering and its effect on plasticity of Fe-Mn-B-Y-Nb bulk metallic glass

J. M. Park; J. H. Na; D. H. Kim; K. B. Kim; N. Mattern; U. Kuhn; J. Eckert

doi:10.1080/14786431003662556

Medium range ordering and its effect on plasticity of Fe-Mn-B-Y-Nb bulk metallic glass

J. M. Park, J. H. Na, D. H. Kim, K. B. Kim, N. Mattern, U. Kuhn, J. Eckert

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Glass formation, thermal properties and mechanical behavior were investigated in a series of Fe_65-xMn₁₃B₁₇Y ₅Nb_x (x = 0, 3, 5 and 7) alloys. Appropriate partial substitution of Fe by Nb in a Fe_65-xMn₁₃B ₁₇Y₅ bulk glassy alloy simultaneously enhances the glass-forming ability and the mechanical properties of the alloys. The Nb-containing glassy alloys exhibit an additional exothermic event in the supercooled liquid region. This exothermic reaction is correlated with the formation of medium range ordered (MRO) clusters originated from the large difference in mixing enthalpy between constituent elements such as Nb-Y (+30 kJ/mol) and Nb-B (-39 kJ/mol). The presence of MRO clusters in the as-cast state is dependent on the cooling condition from the liquid state, and plays a crucial role in providing plasticity in as-cast Fe-Mn-B-Y-Nb bulk metallic glass.

Original language	English
Pages (from-to)	2619-2633
Number of pages	15
Journal	Philosophical Magazine
Volume	90
Issue number	19
DOIs	https://doi.org/10.1080/14786431003662556
Publication status	Published - 2010 Jul

Bibliographical note

Funding Information:
The authors are grateful to Dr. R. Li, G. Wang (IFW-Dresden) for valuable discussions. This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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title = "Medium range ordering and its effect on plasticity of Fe-Mn-B-Y-Nb bulk metallic glass",

abstract = "Glass formation, thermal properties and mechanical behavior were investigated in a series of Fe65-xMn13B17Y 5Nbx (x = 0, 3, 5 and 7) alloys. Appropriate partial substitution of Fe by Nb in a Fe65-xMn13B 17Y5 bulk glassy alloy simultaneously enhances the glass-forming ability and the mechanical properties of the alloys. The Nb-containing glassy alloys exhibit an additional exothermic event in the supercooled liquid region. This exothermic reaction is correlated with the formation of medium range ordered (MRO) clusters originated from the large difference in mixing enthalpy between constituent elements such as Nb-Y (+30 kJ/mol) and Nb-B (-39 kJ/mol). The presence of MRO clusters in the as-cast state is dependent on the cooling condition from the liquid state, and plays a crucial role in providing plasticity in as-cast Fe-Mn-B-Y-Nb bulk metallic glass.",

author = "Park, {J. M.} and Na, {J. H.} and Kim, {D. H.} and Kim, {K. B.} and N. Mattern and U. Kuhn and J. Eckert",

note = "Funding Information: The authors are grateful to Dr. R. Li, G. Wang (IFW-Dresden) for valuable discussions. This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology.",

year = "2010",

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language = "English",

volume = "90",

pages = "2619--2633",

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AU - Park, J. M.

AU - Na, J. H.

AU - Kim, D. H.

AU - Kim, K. B.

AU - Mattern, N.

AU - Kuhn, U.

AU - Eckert, J.

N1 - Funding Information: The authors are grateful to Dr. R. Li, G. Wang (IFW-Dresden) for valuable discussions. This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology.

PY - 2010/7

Y1 - 2010/7

N2 - Glass formation, thermal properties and mechanical behavior were investigated in a series of Fe65-xMn13B17Y 5Nbx (x = 0, 3, 5 and 7) alloys. Appropriate partial substitution of Fe by Nb in a Fe65-xMn13B 17Y5 bulk glassy alloy simultaneously enhances the glass-forming ability and the mechanical properties of the alloys. The Nb-containing glassy alloys exhibit an additional exothermic event in the supercooled liquid region. This exothermic reaction is correlated with the formation of medium range ordered (MRO) clusters originated from the large difference in mixing enthalpy between constituent elements such as Nb-Y (+30 kJ/mol) and Nb-B (-39 kJ/mol). The presence of MRO clusters in the as-cast state is dependent on the cooling condition from the liquid state, and plays a crucial role in providing plasticity in as-cast Fe-Mn-B-Y-Nb bulk metallic glass.

AB - Glass formation, thermal properties and mechanical behavior were investigated in a series of Fe65-xMn13B17Y 5Nbx (x = 0, 3, 5 and 7) alloys. Appropriate partial substitution of Fe by Nb in a Fe65-xMn13B 17Y5 bulk glassy alloy simultaneously enhances the glass-forming ability and the mechanical properties of the alloys. The Nb-containing glassy alloys exhibit an additional exothermic event in the supercooled liquid region. This exothermic reaction is correlated with the formation of medium range ordered (MRO) clusters originated from the large difference in mixing enthalpy between constituent elements such as Nb-Y (+30 kJ/mol) and Nb-B (-39 kJ/mol). The presence of MRO clusters in the as-cast state is dependent on the cooling condition from the liquid state, and plays a crucial role in providing plasticity in as-cast Fe-Mn-B-Y-Nb bulk metallic glass.

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Medium range ordering and its effect on plasticity of Fe-Mn-B-Y-Nb bulk metallic glass

Abstract

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