Počet záznamů: 1
The slip activity during the transition from elastic to plastic tensile deformation of the Mg-Al-Mn sheet
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SYSNO ASEP 0543965 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The slip activity during the transition from elastic to plastic tensile deformation of the Mg-Al-Mn sheet Tvůrce(i) Dobroň, P. (CZ)
Drozdenko, Daria (UJF-V) ORCID
Fekete-Horváth, Klaudia (UJF-V) ORCID
Knapek, Michal (UJF-V) ORCID
Bohlen, J. (DE)
Chmelík, F. (CZ)Celkový počet autorů 6 Zdroj.dok. Journal of Magnesium and Alloys. - : KeAi Publishing Communications - ISSN 2213-9567
Roč. 9, č. 3 (2021), s. 1057-1067Poč.str. 11 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CN - Čína Klíč. slova Magnesium sheet ; Yield asymmetry ; Acoustic emission ; Clustering 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 Open access Institucionální podpora UJF-V - RVO:61389005 UT WOS 000669426600023 EID SCOPUS 85100992246 DOI 10.1016/j.jma.2020.12.010 Anotace The deformation behavior of the Mg-Al-Mn sheet was investigated during tensile loading along the rolling (RD) and transversal direction (TD) with special attention to the early stage of deformation. The activity of dislocation slip systems during the transition from elastic to plastic deformation was revealed by the acoustic emission (AE) technique. The parametrization and statistical AE analysis using the adaptive sequential k-mean (ASK) clustering provided necessary information about the individual deformation mechanisms and their evolution. The AE findings were supported by microstructural analyses, including in-situ secondary electron (SE) imaging and Schmid factor estimation for the activity of particular dislocation slip systems with respect to the loading direction. It was found that basal a slip is the dominating mechanism up to the stress of similar to 80 MPa in both loading directions with an absolute dominance during the RD-loading, while during the TD-loading, the contribution of prismatic a slip to the deformation at stresses above 50 MPa was determined. Below the yielding in both loading directions, the predominance of prismatic a over pyramidal c+a slip was found at the stress in the range of 80-110 MPa and the opposite tendency occurred at stresses between 110 and 140 MPa. 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.jma.2020.12.010
Počet záznamů: 1