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      https://www.ias.ac.in/article/fulltext/boms/029/02/0147-0154

    • Keywords

       

      Titanium alloy LT26A; 𝛽 solution treatment; tensile properties; dynamic strain ageing (DSA).

    • Abstract

       

      Tensile behaviour of the near 𝛼 titanium alloy, Ti–6Al–5Zr–0.5Mo–0.25Si (LT26A), was investigated in (𝛼+𝛽) as well as 𝛽 treated condition, over a wide range of temperature from RT to 823 K. It was observed that there were distinct serrations on the load-elongation curves of the 𝛼 + 𝛽 treated material at intermediate temperatures from 623 to 723 K. Tensile tests at 673 K over a wide range of strain rate from 0.052 to 5.60 (× 10-2) s-1 showed negative strain rate sensitivity. Thus, occurrence of DSA was confirmed. It was established from the measured activation energy for DSA that it was essentially controlled by diffusion of the solid solution strengthener silicon in the matrix.

    • Author Affiliations

       

      Anil Kumar Nag1 K V U Praveen1 Vakil Singh1

      1. Department of Metallurgical Engineering, Institute of Technology, Banaras Hindu University, Varanasi 221 005, India
    • Dates

       
  • Bulletin of Materials Science | News

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