Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation

It was shown very recently that despite high thermal stability some high entropy alloys, namely, intermetallic compounds of TiZrHfCoNiCu family, undergo martensitic transformation and exhibit shape memory effect [1]. It was also found that X-ray diffraction patterns taken from those compounds resemb...

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Main Authors: Firstov Georgiy, Timoshevski Andrei, Kosorukova Tetiana, Koval Yuri, Matviychuk Yuri, Verhovlyuk Pavlo
Format: Article
Language:English
Published: EDP Sciences 2015-01-01
Series:MATEC Web of Conferences
Online Access:http://dx.doi.org/10.1051/matecconf/20153306006
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author Firstov Georgiy
Timoshevski Andrei
Kosorukova Tetiana
Koval Yuri
Matviychuk Yuri
Verhovlyuk Pavlo
author_facet Firstov Georgiy
Timoshevski Andrei
Kosorukova Tetiana
Koval Yuri
Matviychuk Yuri
Verhovlyuk Pavlo
author_sort Firstov Georgiy
collection DOAJ
description It was shown very recently that despite high thermal stability some high entropy alloys, namely, intermetallic compounds of TiZrHfCoNiCu family, undergo martensitic transformation and exhibit shape memory effect [1]. It was also found that X-ray diffraction patterns taken from those compounds resemble qualitatively ones of B2 ordering type for austenitic state and B19` - for martensite. It is going to be shown [2] that the ordered structure of austenite phase is not B2 but is a result of group-subgroup transition down to triclinic P1 space group. Present paper reports onto the results of electron structure modelling combined with crystal structure analysis with the help of experimental data Rietveld refinement performed for TiZrHfCoNiCu intermetallics. Crystal structures of austenite and martensite phases for these high entropy intermetallics will be discussed.
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spelling doaj.art-3208a5f439ca4fde806bc9931f5e1b732022-12-21T22:22:05ZengEDP SciencesMATEC Web of Conferences2261-236X2015-01-01330600610.1051/matecconf/20153306006matecconf_esomat2015_06006Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformationFirstov GeorgiyTimoshevski AndreiKosorukova TetianaKoval YuriMatviychuk YuriVerhovlyuk PavloIt was shown very recently that despite high thermal stability some high entropy alloys, namely, intermetallic compounds of TiZrHfCoNiCu family, undergo martensitic transformation and exhibit shape memory effect [1]. It was also found that X-ray diffraction patterns taken from those compounds resemble qualitatively ones of B2 ordering type for austenitic state and B19` - for martensite. It is going to be shown [2] that the ordered structure of austenite phase is not B2 but is a result of group-subgroup transition down to triclinic P1 space group. Present paper reports onto the results of electron structure modelling combined with crystal structure analysis with the help of experimental data Rietveld refinement performed for TiZrHfCoNiCu intermetallics. Crystal structures of austenite and martensite phases for these high entropy intermetallics will be discussed.http://dx.doi.org/10.1051/matecconf/20153306006
spellingShingle Firstov Georgiy
Timoshevski Andrei
Kosorukova Tetiana
Koval Yuri
Matviychuk Yuri
Verhovlyuk Pavlo
Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
MATEC Web of Conferences
title Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
title_full Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
title_fullStr Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
title_full_unstemmed Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
title_short Electronic and crystal structure of the high entropy TiZrHfCoNiCu intermetallics undergoing martensitic transformation
title_sort electronic and crystal structure of the high entropy tizrhfconicu intermetallics undergoing martensitic transformation
url http://dx.doi.org/10.1051/matecconf/20153306006
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AT kosorukovatetiana electronicandcrystalstructureofthehighentropytizrhfconicuintermetallicsundergoingmartensitictransformation
AT kovalyuri electronicandcrystalstructureofthehighentropytizrhfconicuintermetallicsundergoingmartensitictransformation
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