Issues $\rightarrow$ Volume 24, Issue 3 (2023)

Basics of Additive Manufacturing Processes for High-Entropy Alloys

A. V. Zavdoveev$^1$, T. Baudin$^2$, D. G. Mohan$^3$, D. L. Pakula$^4$, D. V. Vedel$^5$, and M. A. Skoryk$^4$

$^1$E. O. Paton Electric Welding Institute of the N.A.S. of Ukraine, 11, Kazimir Malevich Str., UA-03150 Kyiv, Ukraine
 $^2$Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay, F-91405 Orsay, France
 $^3$Department of Material Processing Engineering, Zhengzhou Research Institute of Harbin Institute of Technology, Zhengzhou, China
 $^4$G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine, 36, Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
 $^5$I. M. Frantsevych Institute for Problems of Materials Science of the N.A.S. of Ukraine, 3, Omeljan Pritsak Str., UA-03142 Kyiv, Ukraine

Received 31.05.2023; final version — 18.07.2023 Download PDF logo PDF

Abstract
The review offers a comprehensive analysis of additive manufacturing (AM) processes in the application of high-entropy alloys (HEAs). HEAs have gained considerable attention in recent years due to their unique mechanical and physical properties. We provide the historical background and a clear definition of HEAs, outlining their development over time. The focus is concentrated on examining the utilization of AM processes in HEAs. Specifically, three prominent AM techniques are discussed: electron-beam processes, laser-processed HEAs, and wire-arc additive manufacturing. Each technique is explored in detail, including its advantages, restrictions, and current applications within the HEAs field. An attention is stressed on the significance of AM-process parameters during the fabrication of HEAs. Parameters such as laser power, scanning speed, and powder-feed rate are analysed for their influences on the microstructure and mechanical properties of the final product. The post-processing techniques for additive-manufactured HEAs are considered. The importance of steps such as heat treatment, surface finishing, and machining in achieving the desired material properties and dimensional accuracy in AM-produced HEA components is underlined. Over viewing the HEAs, their application in AM processes, the influence of process parameters, and post-processing considerations, this work can act as useful source of information for researchers on the way of amendment of the understanding and implementation of AM in the HEAs.

Keywords: additive manufacturing, high-entropy alloys, processing, structure, properties.

DOI: https://doi.org/10.15407/ufm.24.03.561

Citation: A. V. Zavdoveev, T. Baudin, D. G. Mohan, D. L. Pakula, D. V. Vedel, and M. A. Skoryk, Basics of Additive Manufacturing Processes for High-Entropy Alloys, Progress in Physics of Metals, 24, No. 3: 561–592 (2023)

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