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Effect of Initial Powder Characteristics on Microrelief Features in the ZhS6K Grade Alloy after Selective Laser Fusion

  • FUNCTIONAL MATERIALS
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Inorganic Materials: Applied Research Aims and scope

Abstract

The appearance of ZhS6K grade alloy granules, the surface and internal structure, and the chemical composition thereof have been analyzed. It is shown that one can control the formation of a preset state of interfaces (tracks, crystallization cells, hatch block boundaries, grains, phases, and discontinuities such as pores and cracks) through the fractional composition, packing density upon filling, and scanning speed in order to obtain a better material quality. The initial structural state of the samples has been studied. An interrelation between the structure of crystallization cell boundaries, dispersed particles, and the structure of fragments has been established. It is shown that all the studied samples have different structural features at the same power and scanning strategy. The analysis has been performed using the methods of optical metallography and scanning electron microscopy (SEM).

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Funding

This work was financially supported by the Russian Foundation for Basic Research, project no. 14-29-10220, and in the scope of Strategic Directions for the Development of Materials and Technologies for Their Processing for the Period up to 2030 (10.3. Atomization Technologies for Obtaining Fine-Dispersed High-Quality Alloy Powders on Various Bases for Additive Technologies and Powders for Soldering) [25].

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Authors and Affiliations

  1. National Research Center Kurchatov Institute—All-Russian Scientific Research Institute of Aviation Materials (VIAM), 105005, Moscow, Russia

    A. N. Raevskikh, E. B. Chabina & E. V. Filonova

Authors
  1. A. N. Raevskikh
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  2. E. B. Chabina
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  3. E. V. Filonova
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Correspondence to A. N. Raevskikh.

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Translated by O. Polyakov

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Raevskikh, A.N., Chabina, E.B. & Filonova, E.V. Effect of Initial Powder Characteristics on Microrelief Features in the ZhS6K Grade Alloy after Selective Laser Fusion. Inorg. Mater. Appl. Res. 13, 1592–1604 (2022). https://doi.org/10.1134/S207511332206020X

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