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Characterization of Microsegregation and Secondary Phase Precipitation in Nickel-Based Superalloy after Wire-Feed Electron Beam Additive Manufacturing

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Russian Physics Journal Aims and scope

The paper studies the chemical and phase composition of the product from heat-resistant nickel-based superalloy formed by wire-feed electron beam additive manufacturing (EBAM). Microsegregation on macro-(dendrites/interdendritic space) and microscale (γ/γˈ) was evaluated. It is shown that in additively formed material, there is a significant (by an order of magnitude) refinement of structural and phase elements. The degree of microsegregation remains unchanged after the additive process, despite the increase in the volume fraction of dendrites, and the complex thermal history does not lead to the formation of undesirable phases.

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Authors and Affiliations

  1. Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

    D. A. Gurianov, S. V. Fortuna, S. Y. Nikonov, E. N. Moskvichev, E. A. Kolubaev, V. E. Rubtsov & P. S. Sokolov

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  1. D. A. Gurianov
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  2. S. V. Fortuna
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  3. S. Y. Nikonov
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  4. E. N. Moskvichev
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  5. E. A. Kolubaev
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  6. V. E. Rubtsov
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  7. P. S. Sokolov
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Correspondence to D. A. Gurianov.

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Gurianov, D.A., Fortuna, S.V., Nikonov, S.Y. et al. Characterization of Microsegregation and Secondary Phase Precipitation in Nickel-Based Superalloy after Wire-Feed Electron Beam Additive Manufacturing. Russ Phys J 65, 1396–1403 (2022). https://doi.org/10.1007/s11182-023-02782-x

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  • DOI: https://doi.org/10.1007/s11182-023-02782-x

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