You, DaegunÇelebi, Orçun KorayMohammed, Ahmed Sameer KhanBucsek, AshleyŞehitoğlu, Hüseyin2025-02-282025-02-282024-11-260749-6419https://hdl.handle.net/11693/117031The work focuses on the determination of the critical resolved shear stress (CRSS) in titanium (Ti) and titanium-aluminum (Ti-Al) alloys, influenced by an array of factors such as non-symmetric fault energies and minimum energy paths, dislocation core-widths, short-range order (SRO) effects which alter the local atomic environment, and tension-compression (T-C) asymmetry affected by intermittent slip motion. To address these multifaceted complexities, an advanced theory has been developed, offering an in-depth understanding of the mechanisms underlying slip behavior. The active slip systems in these materials are basal, prismatic, and pyramidal planes, with the latter involving both ( a ) and ( c + a ) dislocations. Each slip system is characterized by distinct Wigner-Seitz cell configurations for misfit energy calculations, varying partial dislocation separation distances, and unique dislocation trajectories-all critical to precise CRSS calculations. The theoretical CRSS results were validated against a comprehensive range of experimental data, demonstrating a strong agreement and underscoring the model's efficacy.EnglishCC BY-NC-ND 4.0 Deed (Attribution-NonCommercial-NoDerivatives 4.0 International)https://creativecommons.org/licenses/by-nc-nd/4.0/Critical stressTitaniumShort-range orderDislocationsWigner-Seitz cellStacking faultThe derivation of CRSS in pure Ti and Ti-Al alloysArticle10.1016/j.ijplas.2024.1041871879-2154