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Temperature dependent stacking fault energy of FeCrCoNiMn high entropy alloy
Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden..
Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden..
Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden..
Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China..
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2015 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 108, 44-47 p.Article in journal (Refereed) Published
Abstract [en]

The stacking fault energy (SFE) of paramagnetic FeCrCoNiMn high entropy alloy is investigated as a function of temperature via ab initio calculations. We divide the SFE into three major contributions: chemical, magnetic and strain parts. Structural energies, local magnetic moments and elastic moduli are used to estimate the effect of temperature on each term. The present results explain the recently reported twinning observed below room-temperature and predict the occurrence of the hexagonal phase at cryogenic conditions.

Place, publisher, year, edition, pages
2015. Vol. 108, 44-47 p.
Keyword [en]
High-entropy alloy, Stacking fault energy, Twinning, First-principles calculation
National Category
Materials Engineering Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-262941DOI: 10.1016/j.scriptamat.2015.05.041ISI: 000360250700011OAI: oai:DiVA.org:uu-262941DiVA: diva2:858442
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilVINNOVA, 2014-03374
Available from: 2015-10-02 Created: 2015-09-23 Last updated: 2017-12-01Bibliographically approved

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Vitos, Levente

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