Magneto-structural correlations in Fe-25 at%Al influenced by substitution of Fe by Co and by thermal treatment

0556897 - ÚFM 2023 RIV CH eng J - Článek v odborném periodiku
Jirásková, Yvonna - Pizúrová, Naděžda - Buršík, Jiří - Friák, Martin - Čízek, J. - Vlasák, T. - Čegan, T. - Nikodým, M. - Luňáček, J.
Magneto-structural correlations in Fe-25 at%Al influenced by substitution of Fe by Co and by thermal treatment.
Journal of Alloys and Compounds. Roč. 904, MAY (2022), č. článku 163996. ISSN 0925-8388. E-ISSN 1873-4669
Výzkumná infrastruktura: e-INFRA CZ - 90140
Institucionální podpora: RVO:68081723
Klíčová slova: magnetic-properties * phase separations * mossbauer * spectroscopy * hysteresis * parameters * positrons * compound * defect * Microstructure * Fe-Al(Co) alloys * Magnetic properties * Positron annihilation spectroscopy * Mossbauer spectrometry * Vacancies
Obor OECD: Materials engineering
Impakt faktor: 6.2, rok: 2022
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S0925838822003875?via%3Dihub

The scanning electron microscopy, X-ray diffraction, positron annihilation spectroscopy, Mossbauer spectrometry, and measurements of magnetic characteristics by vibrating sample magnetometer complemented by theoretical simulations are applied in the present investigations of the Fe-Al-Co alloys with 25 at% Al and Co substituting Fe in amount of 15 at% or 25 at%. The alloys prepared by slightly different technologies resulting in different structural morphologies are subjected to thermal treatment followed by slow cooling and water cooling. It is shown that the alloy with lower Co content and the initial A2 structure is more sensitive to the thermal treatments from the viewpoints of changes in morphology, defects concentration and magnetic properties in comparison to the other one with the initial B2 structure. This is reflected almost in all experimentally obtained results.(c) 2022 Elsevier B.V. All rights reserved.
Trvalý link: http://hdl.handle.net/11104/0331014