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<p>The paper focuses on the fabrication of Stellite&#xa0;6 alloy using wire-feed electron beam additive manufacturing (EBAM) with different electron beam sweep parameters. Three types of sweep patterns are studied: ellipse, figure-eight across the forming layer, and spiral from the center. Three different scanning frequencies are applied to the ellipse sweep pattern: 100, 200, and 500 Hz. It is shown that sweep parameters significantly affect the final geometry of the EBAM-manufactured samples. It also helps to suppress the size growth of the dendritic arm, as the height of obtained samples increases. It is demonstrated that varying sweep parameters does not affect the structure and phase composition and thus the mechanical properties of fabricated samples.</p>

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Effect of electron beam sweep on structure and properties of cobalt-based superalloy in wire-feed additive manufacturing

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • D. A. Gurianov,
  • S. V. Fortuna,
  • S. Yu. Nikonov,
  • A. V. Chumaevskii,
  • A. V. Nikolaeva,
  • E. A. Kolubaev

摘要

The paper focuses on the fabrication of Stellite 6 alloy using wire-feed electron beam additive manufacturing (EBAM) with different electron beam sweep parameters. Three types of sweep patterns are studied: ellipse, figure-eight across the forming layer, and spiral from the center. Three different scanning frequencies are applied to the ellipse sweep pattern: 100, 200, and 500 Hz. It is shown that sweep parameters significantly affect the final geometry of the EBAM-manufactured samples. It also helps to suppress the size growth of the dendritic arm, as the height of obtained samples increases. It is demonstrated that varying sweep parameters does not affect the structure and phase composition and thus the mechanical properties of fabricated samples.