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<p>This study investigated the effects of welding speed on various characteristics&#xa0;of&#xa0;electron beam welded CP-titanium to&#xa0;Ti-6Al-4V dissimilar joints. The change in welding speed was found to be effective in altering the morphology, microstructure, and mechanical properties&#xa0;of the fabricated joints. Higher welding speed conditions have improved the quality of joints by minimizing spatter and underfill tendencies. The microstructural analysis revealed narrower weldments with finer acicular grains in&#xa0;joints produced using higher welding&#xa0;speeds compared to their low-speed counterparts. Consequently, these joints exhibited enhanced mechanical properties, such as the notch tensile strength and notch strength ratio.</p>

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Microstructure and Mechanical Properties of Electron Beam Welded Commercially Pure Titanium to Ti-6Al-4V Dissimilar Joints

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Akash Sharma,
  • B. V. Kiran Kumar,
  • Banti Kumar,
  • J. Pradyumna,
  • Randhir Kumar Singh,
  • Jyotirmaya Kar

摘要

This study investigated the effects of welding speed on various characteristics of electron beam welded CP-titanium to Ti-6Al-4V dissimilar joints. The change in welding speed was found to be effective in altering the morphology, microstructure, and mechanical properties of the fabricated joints. Higher welding speed conditions have improved the quality of joints by minimizing spatter and underfill tendencies. The microstructural analysis revealed narrower weldments with finer acicular grains in joints produced using higher welding speeds compared to their low-speed counterparts. Consequently, these joints exhibited enhanced mechanical properties, such as the notch tensile strength and notch strength ratio.