Recent advances on high-entropy alloys for 3D printing

Boosted by the success of high-entropy alloys (HEAs) manufactured by conventional processes in various applications, the development of HEAs for 3D printing has been advancing rapidly in recent years. 3D printing of HEAs gives rise to a great potential for manufacturing geometrically complex HEA pro...

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Main Authors: Han, Changjun, Fang, Qihong, Shi, Yusheng, Tor, Shu Beng, Chua, Chee Kai, Zhou, Kun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/145433
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author Han, Changjun
Fang, Qihong
Shi, Yusheng
Tor, Shu Beng
Chua, Chee Kai
Zhou, Kun
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Han, Changjun
Fang, Qihong
Shi, Yusheng
Tor, Shu Beng
Chua, Chee Kai
Zhou, Kun
author_sort Han, Changjun
collection NTU
description Boosted by the success of high-entropy alloys (HEAs) manufactured by conventional processes in various applications, the development of HEAs for 3D printing has been advancing rapidly in recent years. 3D printing of HEAs gives rise to a great potential for manufacturing geometrically complex HEA products with desirable performances, thereby inspiring their increased appearance in industrial applications. Herein, a comprehensive review of the recent achievements of 3D printing of HEAs is provided, in the aspects of their powder development, printing processes, microstructures, properties, and potential applications. It begins with the introduction of the fundamentals of 3D printing and HEAs, as well as the unique properties of 3D-printed HEA products. The processes for the development of HEA powders, including atomization and mechanical alloying, and the powder properties, are then presented. Thereafter, typical processes for printing HEA products from powders, namely, directed energy deposition, selective laser melting, and electron beam melting, are discussed with regard to the phases, crystal features, mechanical properties, functionalities, and potential applications of these products (particularly in the aerospace, energy, molding, and tooling industries). Finally, perspectives are outlined to provide guidance for future research.
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spelling ntu-10356/1454332020-12-26T20:11:26Z Recent advances on high-entropy alloys for 3D printing Han, Changjun Fang, Qihong Shi, Yusheng Tor, Shu Beng Chua, Chee Kai Zhou, Kun School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering High-entropy Alloy Additive Manufacturing Boosted by the success of high-entropy alloys (HEAs) manufactured by conventional processes in various applications, the development of HEAs for 3D printing has been advancing rapidly in recent years. 3D printing of HEAs gives rise to a great potential for manufacturing geometrically complex HEA products with desirable performances, thereby inspiring their increased appearance in industrial applications. Herein, a comprehensive review of the recent achievements of 3D printing of HEAs is provided, in the aspects of their powder development, printing processes, microstructures, properties, and potential applications. It begins with the introduction of the fundamentals of 3D printing and HEAs, as well as the unique properties of 3D-printed HEA products. The processes for the development of HEA powders, including atomization and mechanical alloying, and the powder properties, are then presented. Thereafter, typical processes for printing HEA products from powders, namely, directed energy deposition, selective laser melting, and electron beam melting, are discussed with regard to the phases, crystal features, mechanical properties, functionalities, and potential applications of these products (particularly in the aerospace, energy, molding, and tooling industries). Finally, perspectives are outlined to provide guidance for future research. National Research Foundation (NRF) Accepted version This review is supported by the National Research Foundation, Prime Minister’s Office, Singapore under its Medium-Sized Centre funding scheme through the Marine and Offshore Program.. 2020-12-21T08:32:51Z 2020-12-21T08:32:51Z 2020 Journal Article Han, C., Fang, Q., Shi, Y., Tor, S. B., Chua, C. K., & Zhou, K. (2020). Recent advances on high-entropy alloys for 3D printing. Advanced Materials , 32(26), e1903855. doi:10.1002/adma.201903855 1521-4095 https://hdl.handle.net/10356/145433 10.1002/adma.201903855 32431005 26 32 e1903855 en Advanced Materials This is the accepted version of the following article: Han, C., Fang, Q., Shi, Y., Tor, S. B., Chua, C. K., & Zhou, K. (2020). Recent advances on high-entropy alloys for 3D printing. Advanced Materials , 32(26), e1903855. doi:10.1002/adma.201903855, which has been published in final form at https://doi.org/10.1002/adma.201903855. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf
spellingShingle Engineering
High-entropy Alloy
Additive Manufacturing
Han, Changjun
Fang, Qihong
Shi, Yusheng
Tor, Shu Beng
Chua, Chee Kai
Zhou, Kun
Recent advances on high-entropy alloys for 3D printing
title Recent advances on high-entropy alloys for 3D printing
title_full Recent advances on high-entropy alloys for 3D printing
title_fullStr Recent advances on high-entropy alloys for 3D printing
title_full_unstemmed Recent advances on high-entropy alloys for 3D printing
title_short Recent advances on high-entropy alloys for 3D printing
title_sort recent advances on high entropy alloys for 3d printing
topic Engineering
High-entropy Alloy
Additive Manufacturing
url https://hdl.handle.net/10356/145433
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