Print Email Facebook Twitter Effect of stacking fault energy on the thickness and density of annealing twins in recrystallized FCC medium and high-entropy alloys Title Effect of stacking fault energy on the thickness and density of annealing twins in recrystallized FCC medium and high-entropy alloys Author Schneider, Mike (Ruhr-Universität Bochum; PSL Research University) Couzinié, Jean Philippe (Université Paris-Est Créteil) Shalabi, Amin (Ruhr-Universität Bochum) Ibrahimkhel, Farhad (Ruhr-Universität Bochum) Ferrari, A. (TU Delft Team Marcel Sluiter) Körmann, F.H.W. (TU Delft Team Marcel Sluiter; Max-Planck-Institut für Eisenforschung; Bundesanstalt für Materialforschung und -prüfung (BAM)) Laplanche, Guillaume (Ruhr-Universität Bochum) Date 2024 Abstract This work aims to predict the microstructure of recrystallized medium and high-entropy alloys (MEAs and HEAs) with a face-centered cubic structure, in particular the density of annealing twins and their thickness. Eight MEAs and five HEAs from the Cr-Mn-Fe-Co-Ni system are considered, which have been cast, homogenized, cold-worked and recrystallized to obtain different grain sizes. This work thus provides a database that could be used for data mining to take twin boundary engineering for alloy development to the next level. Since the stacking fault energy is known to strongly affect recrystallized microstructures, the latter was determined at 293 K using the weak beam dark-field technique and compared with ab initio simulations, which additionally allowed to calculate its temperature dependence. Finally, we show that all these data can be rationalized based on theories and empirical relationships that were proposed for pure metals and binary Cu-based alloys. Subject CoCrFeMnNi HEAs and MEAsElectron backscatter diffractionGrain boundary engineeringRecrystallizationTransmission electron microscopy (TEM) To reference this document use: http://resolver.tudelft.nl/uuid:d0202570-790a-4a6b-99df-e73bb0edcebc DOI https://doi.org/10.1016/j.scriptamat.2023.115844 ISSN 1359-6462 Source Scripta Materialia, 240 Part of collection Institutional Repository Document type journal article Rights © 2024 Mike Schneider, Jean Philippe Couzinié, Amin Shalabi, Farhad Ibrahimkhel, A. Ferrari, F.H.W. Körmann, Guillaume Laplanche Files PDF 1_s2.0_S1359646223005651_main.pdf 2.42 MB Close viewer /islandora/object/uuid:d0202570-790a-4a6b-99df-e73bb0edcebc/datastream/OBJ/view