Features of the formation of the structural-phase state of the EP648 alloy during selective lase manufacture

Ospennikova O.G., Naprienko S.A., Medvedev P.N., Zaysev D.V., Rogalev A.M.
UDC
621.791
DOI
10.18577/2307-6046-2021-0-8-3-11
Article PDF (Russian) (1.61 MB)
How to cite
Ospennikova O.G., Naprienko S.A., Medvedev P.N., Zaysev D.V., Rogalev A.M. Features of the formation of the structural-phase state of the EP648 alloy during selective lase manufacture // Proceedings of VIAM. 2021. No. 8. DOI: 10.18577/2307-6046-2021-0-8-3-11. URL: https://test.viam.ru/en/journal/2021/8/1
Keywords
alloy EP648, SLM, additive technologies, structural-phase state, texture, SEM, TEM.
Abstract

The paper shows the features of the formation of the structural-phase and textural state of the EP648 alloy obtained by the SLM method in the initial state, after hot isostatic pressing and heat treatment. It was found that in the process of synthesis, a limited crystallographic texture of the γ-phase is formed, which does not undergo significant changes in the process of subsequent treatments. The uniform distribution of fine particles of the hardening phases, apparently, leads to an increase in both the strength and plastic properties of the material obtained by the SLM method in comparison with the material obtained by the traditional technology.

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