In-situ investigation of plasticity in a Ti-Al-V-Fe (α+β) alloy: Slip mechanisms, strain localization, and partitioning

•Origin of strain localization bands was revealed by in-situ strain mapping.•Phase boundary slip transferability was assessed by crystallographic calculations.•Moderate strain partitioning trends were identified between α/β phases.•Correlations between deformation micro-features and damage behavior were recognized.