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<p>Working out of technological recommendations for modern additive manufacturing of titanium alloys is an important scientific and technical task for modern industry. The paper presents results of experimental studying the effect of heat input during wire and electron beam additive manufacturing (WEBAM) on the structural-phase composition and mechanical properties of a&#xa0;WEBAM-built Ti–6Al–4V alloy. Characteristic morphological and structural features of the as-built metal have been established. The as-built metal was represented by α‑Ti (HCP) and β‑Ti (BCC) lath structures. It has been shown that an increase in the heat input contributes to a&#xa0;higher ductility of the as-built metal with lower strength and microhardness values.</p>

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Effect of heat input on structure and mechanical properties of an electron beam additively manufactured Ti–6Al–4V alloy

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • N. N. Shamarin,
  • A. V. Filippov,
  • N. V. Semenchuk,
  • V. M. Semenchuk,
  • A. O. Panfilov,
  • S. Yu. Tarasov,
  • A. V. Chumaevskii

摘要

Working out of technological recommendations for modern additive manufacturing of titanium alloys is an important scientific and technical task for modern industry. The paper presents results of experimental studying the effect of heat input during wire and electron beam additive manufacturing (WEBAM) on the structural-phase composition and mechanical properties of a WEBAM-built Ti–6Al–4V alloy. Characteristic morphological and structural features of the as-built metal have been established. The as-built metal was represented by α‑Ti (HCP) and β‑Ti (BCC) lath structures. It has been shown that an increase in the heat input contributes to a higher ductility of the as-built metal with lower strength and microhardness values.