Počet záznamů: 1
The effect of Zr on dynamic recrystallization during ECAP processing of Mg-Y-RE alloys
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SYSNO ASEP 0542560 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effect of Zr on dynamic recrystallization during ECAP processing of Mg-Y-RE alloys Tvůrce(i) Minárik, P. (CZ)
Zemková, M. (CZ)
Veselý, J. (CZ)
Bohlen, J. (DE)
Knapek, Michal (UJF-V) ORCID
Král, R. (CZ)Celkový počet autorů 6 Číslo článku 111033 Zdroj.dok. Materials Characterization. - : Elsevier - ISSN 1044-5803
Roč. 174, APR (2021)Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova magnesium ; rare earth elements ; ECAP Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Materials engineering CEP EF16_013/0001794 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UJF-V - RVO:61389005 UT WOS 000640905500005 EID SCOPUS 85102795747 DOI 10.1016/j.matchar.2021.111033 Anotace Two magnesium alloys containing yttrium and rare-earth elements were processed by equal channel angular pressing (ECAP) to explore the effect of the small addition of zirconium on the resulting microstructures. The composition of the alloys was Mg?3.8wt%Y?2.6 wt%RE?0.45 wt%Zr (WE43) and Mg?4.1wt%Y?2.8wt%Nd (WN43), respectively. It is shown that small Zr addition facilitates the formation of small secondary phase particles. The particles become smaller, and their distribution is denser. Consequently, the grain nucleation processes are more active, grain growth is suppressed, and the final grain size is smaller. The faster nucleation rate affects the texture formation during ECAP as well. It is shown that this effect is independent of the initial microstructural condition concerning both the grain size and the presence/distribution of secondary phase particles. The positive impact of Zr was proven employing scanning and transmission electron microscopy, texture measurements by X-ray diffraction and further reflected in the improved strength of the material in terms of microhardness and compression testing. It was shown that, in this way, the microstructure and texture of MgRE alloys could be effectively tailored by small Zr additions. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2022 Elektronická adresa https://doi.org/10.1016/j.matchar.2021.111033
Počet záznamů: 1