Features of VZhL21 Nickel-Base Superalloy Structure Formation During Selective Laser Melting, Vacuum Heat Treatment, and Hot Isostatic Compaction

This article considers features of the material structure of high-strength alloy VZhL21 obtained by selective laser melting (SLM) in different stages of its post-treatment. On the basis of analyzing the microstructure the so-called “process window” that is the interval of volumetric energy density f...

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Veröffentlicht in:Metallurgist (New York) 2019-07, Vol.63 (3-4), p.409-421
Hauptverfasser: Sukhov, D. I., Petrushin, N. V., Zaitsev, D. V., Tikhonov, M. M.
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container_issue 3-4
container_start_page 409
container_title Metallurgist (New York)
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creator Sukhov, D. I.
Petrushin, N. V.
Zaitsev, D. V.
Tikhonov, M. M.
description This article considers features of the material structure of high-strength alloy VZhL21 obtained by selective laser melting (SLM) in different stages of its post-treatment. On the basis of analyzing the microstructure the so-called “process window” that is the interval of volumetric energy density for effective variation of (SLM) parameters during preparation of this material is determined. A study of synthesized VZhL21 alloy material is conducted by transmission microscopy with analysis of phase components and alloying element distribution within the volume of material. The efficiency of vacuum-heat and gasostatic treatment regimes is evaluated during crack healing. The structure of the material obtained is studied by light, scanning, and transmission microscopy after vacuum-heat, gasostatic, and heat treatment. The main structural components are determined by XPA.
doi_str_mv 10.1007/s11015-019-00837-4
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subjects Alloying elements
Alloys
Analysis
Characterization and Evaluation of Materials
Chemistry and Materials Science
Flux density
Heat treatment
High strength alloys
Laser beam melting
Materials Science
Metallic Materials
Microscopy
Nickel
Nickel base alloys
Superalloys
title Features of VZhL21 Nickel-Base Superalloy Structure Formation During Selective Laser Melting, Vacuum Heat Treatment, and Hot Isostatic Compaction
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