A review of recent research on nanoindentation of high-entropy alloys processed by high-pressure torsion
A review of recent research on nanoindentation of high-entropy alloys processed by high-pressure torsion
High entropy alloys (HEAs) are a novel class of materials that have emerged as potential candidates for various industrial applications due to their excellent mechanical properties at cryogenic, ambient, elevated temperatures, and even under a hydrogen environment. The incorporation of nanocrystalline (nc) structure into HEAs has attracted significant attention for the further enhancement of their exceptional properties, as exceptional grain refinement usually results in enhanced strength without a large expense of ductility. High-pressure torsion (HPT) is often considered one of the most efficient methods for nanocrystallization, and this also holds true for HEAs. Recently, nanoindentation technique has been widely utilized to explore the relationship between HPT-induced grain refinement and mechanical behavior due to the inhomogeneous microstructure within the HPT disk. In this report, recent nanoindentation studies performed on HPT-processed HEAs are comprehensively reviewed with special emphasis on the nanomechanical behavior of nc HEAs.
high-entropy alloy, high-pressure torsion, nanocrystalline metal, nanoindentation
1551-1565
Lee, Dong-Hyun
ed19915c-a04e-468e-9246-7cd76b9c590c
Choi, In-Chul
7a33a581-e44b-4f53-8ded-5e46af6f5506
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Jang, Jae-il
c8160c1e-ce1b-4518-8a52-930cb9f54800
1 July 2023
Lee, Dong-Hyun
ed19915c-a04e-468e-9246-7cd76b9c590c
Choi, In-Chul
7a33a581-e44b-4f53-8ded-5e46af6f5506
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Jang, Jae-il
c8160c1e-ce1b-4518-8a52-930cb9f54800
Lee, Dong-Hyun, Choi, In-Chul, Kawasaki, Megumi, Langdon, Terence G. and Jang, Jae-il
(2023)
A review of recent research on nanoindentation of high-entropy alloys processed by high-pressure torsion.
Materials Transactions, 64 (7), .
(doi:10.2320/matertrans.MT-MF2022015).
Abstract
High entropy alloys (HEAs) are a novel class of materials that have emerged as potential candidates for various industrial applications due to their excellent mechanical properties at cryogenic, ambient, elevated temperatures, and even under a hydrogen environment. The incorporation of nanocrystalline (nc) structure into HEAs has attracted significant attention for the further enhancement of their exceptional properties, as exceptional grain refinement usually results in enhanced strength without a large expense of ductility. High-pressure torsion (HPT) is often considered one of the most efficient methods for nanocrystallization, and this also holds true for HEAs. Recently, nanoindentation technique has been widely utilized to explore the relationship between HPT-induced grain refinement and mechanical behavior due to the inhomogeneous microstructure within the HPT disk. In this report, recent nanoindentation studies performed on HPT-processed HEAs are comprehensively reviewed with special emphasis on the nanomechanical behavior of nc HEAs.
More information
Accepted/In Press date: 30 March 2023
e-pub ahead of print date: 14 April 2023
Published date: 1 July 2023
Additional Information:
Funding Information:
The work at Chungnam National University was supported in part by research fund of Chungnam National University, and in part by the National Research Foundation (NRF) grant funded by the Korean government (MSIT) (No. 2021R1A4A1031494). The work at Hanyang University was supported by the NRF grant funded by the MSIT (No. 2022R1A5A1030054). This study at Oregon State University was supported by the National Science Foundation of the United States under Grant No. CMMI-2051205. The work at the University of Southampton was supported by the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS.
Publisher Copyright:
©2023 The Japan Institute of Metals and Materials.
Keywords:
high-entropy alloy, high-pressure torsion, nanocrystalline metal, nanoindentation
Identifiers
Local EPrints ID: 483781
URI: http://eprints.soton.ac.uk/id/eprint/483781
ISSN: 1347-5320
PURE UUID: 413f7278-e97b-484a-a076-9802304c244e
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Date deposited: 06 Nov 2023 17:36
Last modified: 18 Mar 2024 02:56
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Contributors
Author:
Dong-Hyun Lee
Author:
In-Chul Choi
Author:
Megumi Kawasaki
Author:
Jae-il Jang
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