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


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

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.

About the authors

D. I. Sukhov

All-Russia Scientific Research Institute of Aviation Materials (VIAM)

Author for correspondence.
Email: viam.lab6@mail.ru
Russian Federation, Moscow

N. V. Petrushin

All-Russia Scientific Research Institute of Aviation Materials (VIAM)

Email: viam.lab6@mail.ru
Russian Federation, Moscow

D. V. Zaitsev

All-Russia Scientific Research Institute of Aviation Materials (VIAM)

Email: viam.lab6@mail.ru
Russian Federation, Moscow

M. M. Tikhonov

All-Russia Scientific Research Institute of Aviation Materials (VIAM)

Email: viam.lab6@mail.ru
Russian Federation, Moscow

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature