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Defects in High Entropy Alloy HfNbTaTiZr Prepared by High Pressure Torsion
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SYSNO ASEP 0507464 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Defects in High Entropy Alloy HfNbTaTiZr Prepared by High Pressure Torsion Author(s) Lukáč, František (UFP-V) ORCID
Dudr, Martin (UFP-V)
Čízek, J. (CZ)
Harcuba, P. (CZ)
Vlasák, T. (CZ)
Janeček, M. (CZ)
Kuriplach, J. (CR)
Moon, J. (KR)
Kim, H. S. (KR)
Zyka, J. (CZ)
Málek, J. (CZ)Number of authors 11 Source Title Acta Physica Polonica. - Varšava : Polish Academy of Sciences, 2017 - ISSN 0587-4246 Pages s. 891-894 Number of pages 4 s. Publication form Online - E Action 14th International Symposium on Physics of Materials Event date 10.09.2017 - 15.09.2017 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country PL - Poland Keywords high pressure ; entropy ; defects Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA17-17016S GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 UT WOS 000453257500063 EID SCOPUS 85050817556 DOI 10.12693/APhysPolA.134.891 Annotation High entropy alloy HfNbTaTiZr was successfully processed by severe plastic deformation using high pressure torsion (HPT) and ultrafine grained microstructure was achieved. The microstructure of HPT-deformed HfNbTaTiZr alloy was characterized by X-ray diffraction and compared with conventionally cast ingots. The lattice defects introduced by HPT processing were characterized by positron annihilation spectroscopy. The X-ray diffraction profiles of HTP-deformed samples were extremely broadened due to small sizes of coherently diffracting domains and a high microstrain introduced by severe plastic deformation. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address http://przyrbwn.icm.edu.pl/APP/PDF/134/app134z3p62.pdf
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