Effect of Temperature, Strain and Microstructure on Texture Evolution of Ti-6Al-4V During Hot Rolling

Abstract Ti-6Al-4V (Ti-64) is one of the most widely used α + β titanium alloys. During its thermomechanical processing, strong and heterogeneous crystallographic textures can develop that are detrimental to mechanical performance. Existing texture data for Ti-64 in the α + β regime is limited and lacks detail on how the texture of both the hexagonal close-packed (HCP) α and body-centred cubic (BCC) β phases evolve during hot deformation. In this study, a comprehensive dataset of α and β textures was generated from hot rolling experiments at nine temperatures (825–1020 °C) and three rolling reductions (up to 87.5 pct), with different starting microstructures. High-throughput electron backscatter diffraction and synchrotron X-ray diffraction were used to characterise texture development. Results show that a moderate 0002//TD α alignment forms at all subtransus temperatures and becomes dominant above 895 °C, increasing with both strain and temperature. In contrast, the β texture remains weak at lower temperatures but develops a strong $$\left\{001\right\}\langle 110\rangle $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mfenced> <mml:mn>001</mml:mn> </mml:mfenced> <mml:mrow> <mml:mo>⟨</mml:mo> <mml:mn>110</mml:mn> <mml:mo>⟩</mml:mo> </mml:mrow> </mml:mrow> </mml:math> rotated cube component near and above the β -transus. Lamellar-starting microstructures led to slightly stronger textures but similar texture components. The full dataset has been made publicly available to support future modelling efforts and improve understanding of dual-phase texture development in titanium alloys.