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Thermal expansion in FeCrCoNiGa high-entropy alloy from theory and experiment
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- Huang, Shuo (author)
- KTH,Tillämpad materialfysik,Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden.
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- Vida, Adam (author)
- Wigner Res Ctr Phys, Inst Solid State Phys & Opt, POB 49, H-1525 Budapest, Hungary.;Eotvos Lorand Univ, Dept Mat Phys, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary.
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- Li, Wei (author)
- KTH,Tillämpad materialfysik,Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden.
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- AMER INST PHYSICS, 2017
- 2017
- English.
- In: Applied Physics Letters. - : AMER INST PHYSICS. - 0003-6951 .- 1077-3118. ; 110:24
- Journal article (peer-reviewed)
Abstract
Subject headings
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- First-principle alloy theory and key experimental techniques are applied to determine the thermal expansion of FeCrCoNiGa high-entropy alloy. The magnetic transition, observed at 649 K, is accompanied by a significant increase in the thermal expansion coefficient. The phase stability is analyzed as a function of temperature via the calculated free energies accounting for the structural, magnetic, electronic, vibrational and configurational contributions. The single-and polycrystal elastic modulus for the ferro-and paramagnetic states of the face-centered and body-centered cubic phases are presented. By combining the measured and theoretically predicted temperature-dependent lattice parameters, we reveal the structural and magnetic origin of the observed anomalous thermal expansion behavior. Published by AIP Publishing.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Steel Forming and Surface Engineering
- Stålformning och ytteknik
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- art (subject category)
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- Huang, Shuo
- Vida, Adam
- Li, Wei
- Molnar, David
- Kwon, Se Kyun
- Holmstrom, Erik
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- Varga, Bela
- Varga, Lajos Kar ...
- Vitos, Levente
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- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
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- NATURAL SCIENCES
- and Physical Science ...
- and Other Physics To ...
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- NATURAL SCIENCES
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- Högskolan Dalarna
- Royal Institute of Technology
- Uppsala University
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