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Effect of Metal-Powder Composition Fraction and Layer Thickness on Structure and Mechanical Properties of Alloy VT6 Synthesized Material Prepared by Selective Laser Melting

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This article considers questions of the effect of layer thickness during synthesis of alloy VT6 material by selective laser melting and use of a metal powder composition with a size of 63–80 μm compared with a fraction 10–63 μm. Evaluation of the structure and phase composition of alloy VT6 material prepared from metal powder composition of faction 10–63 μm (with a 30- and 60-μm layer) and 63–80 μm (with a 60 μm layer) did not reveal any differences either after selective laser alloying, after use of hot isostatic compaction, or after heat treatment. Mechanical properties of synthesized alloy VT6 material under these conditions are also evaluated. Properties obtained in specimens of metal composite powder fraction 63–80 μm are almost identical to those of specimens of metal powder composite of fraction 10–63 μm prepared by a regime with a 60-μm layer. It is demonstrated that for the method of selective laser alloying it is possible to use fraction 63–80 μm with retention of the same strengthened ductility properties as with use of fraction 10–63 μm, but with a significant reduction in surface roughness for the objects obtained.

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Authors and Affiliations

  1. FGUP All-Russia Scientific Research Institute of Aviation Materials, Moscow, Russia

    D. I. Sukhov, N. A. Khodirev, A. M. Rogalev, S. E. Kurkin & S. V Nerush

Authors
  1. D. I. Sukhov
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  2. N. A. Khodirev
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  3. A. M. Rogalev
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  4. S. E. Kurkin
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  5. S. V Nerush
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Corresponding author

Correspondence to D. I. Sukhov.

Additional information

Translated from Metallurg, Vol. 65, No. 7, pp. 62–68, July, 2021. Russian DOI: 10.52351/00260827_202_07_62.

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Sukhov, D.I., Khodirev, N.A., Rogalev, A.M. et al. Effect of Metal-Powder Composition Fraction and Layer Thickness on Structure and Mechanical Properties of Alloy VT6 Synthesized Material Prepared by Selective Laser Melting. Metallurgist 65, 760–768 (2021). https://doi.org/10.1007/s11015-021-01213-x

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  • DOI: https://doi.org/10.1007/s11015-021-01213-x

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