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<p>Multistage hot rolling with controlled inter-pass annealing was employed to refine the microstructure of Ti-6Al-2.5V alloy for high-performance structural applications. The thickness was reduced from 2 to 0.2&#xa0;mm (~ 90%) through eight rolling passes with inter-pass annealing at 400/500&#xa0;°C for 10 min. The hot deformation led to progressive grain refinement, texture strengthening, and a bimodal α-phase distribution. The specimen B (500&#xa0;°C inter-pass annealing) resulted in increased tensile strength to 837 ± 28&#xa0;MPa and hardness 378 ± 14 HV with moderate retention of ductility. The results validate the effectiveness of controlled multistage hot rolling in tailoring the microstructure–property synergy of Ti-6Al-2.5V for thin-sheet structural applications.</p> Graphical Abstract <p></p>

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Microstructural and Mechanical Evolution in Ti-6Al-2.5V Alloy during Multistage Hot Rolling

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • Sudheer Reddy Beyanagari,
  • R. Vaira Vignesh,
  • Babu Narayanan,
  • K. Rajesh Kannan

摘要

Multistage hot rolling with controlled inter-pass annealing was employed to refine the microstructure of Ti-6Al-2.5V alloy for high-performance structural applications. The thickness was reduced from 2 to 0.2 mm (~ 90%) through eight rolling passes with inter-pass annealing at 400/500 °C for 10 min. The hot deformation led to progressive grain refinement, texture strengthening, and a bimodal α-phase distribution. The specimen B (500 °C inter-pass annealing) resulted in increased tensile strength to 837 ± 28 MPa and hardness 378 ± 14 HV with moderate retention of ductility. The results validate the effectiveness of controlled multistage hot rolling in tailoring the microstructure–property synergy of Ti-6Al-2.5V for thin-sheet structural applications.

Graphical Abstract