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Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test

S. González, A.K. Sfikas, S. Kamnis Orcid Logo, Sean John, N.C. Barnard Orcid Logo, C. Gammer Orcid Logo, J. Eckert, C.G. Garay-Reyes, R. Martínez-Sánchez Orcid Logo, S.W. Naung, M. Rahmati, T. Keil, K. Durst, Robert Lancaster Orcid Logo

Materials and Design, Volume: 233, Start page: 112294

Swansea University Authors: Sean John, Robert Lancaster Orcid Logo

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Abstract

High entropy alloys (HEAs) are a novel class of metallic materials that exhibit a unique blend of properties due to their chemical composition and atomic arrangement. This research aims to investigate the strain rate sensitivity (SRS) of two HEA CoCrFeMnNiTix (x=0, 0.3) alloy compositions through th...

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Published in: Materials and Design
ISSN: 0264-1275 1873-4197
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64443
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spelling v2 64443 2023-09-06 Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test 8332e0e483d7926c508d9309553e3497 Sean John Sean John true false e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false 2023-09-06 MTLS High entropy alloys (HEAs) are a novel class of metallic materials that exhibit a unique blend of properties due to their chemical composition and atomic arrangement. This research aims to investigate the strain rate sensitivity (SRS) of two HEA CoCrFeMnNiTix (x=0, 0.3) alloy compositions through the use of shear punch testing. This method has been proven to provide reliable results for both HEA materials, including the CoCrFeMnNiTi0.3 HEA composition which was found to be inherently brittle and contained both σ-phase and Laves phase compounds with a hardness close to 14 GPa and a soft FCC phase. Among all the testing temperatures (room temperature to 400 °C) and deflection rates (0.2, 2 and 10 mm.min-1) used, only the CoCrFeMnNi HEA alloy was found to exhibit SRS at room temperature (m = 0.0333), while for the other HEA alloy variant and testing conditions, the SRS was found to be zero. From empirical correlations and finite element analysis (FEA), the calculated value for m ranged from 0.0333-0.0359, thus evidencing that the FEA simulations provide an accurate and suitable means of capturing the deformation behaviour of such alloys when subjected to shearing. Journal Article Materials and Design 233 112294 Elsevier BV 0264-1275 1873-4197 Shear punch testing, High entropy alloy, Finite element simulation 30 9 2023 2023-09-30 10.1016/j.matdes.2023.112294 http://dx.doi.org/10.1016/j.matdes.2023.112294 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University The authors would like to acknowledge the support from the UK Research and Innovation (UKRI-IUK) national funding agency. Project Grant: 53662 ‘Design of High-Entropy Superalloys Using a Hybrid Experimental-Based Machine Learning Approach: Steel Sector Application’. K.D. gratefully acknowledge the funding by the German Research Foundation (DFG) within the priority programme SPP2006 under Grant No. DU424/13–2. 2023-10-09T17:32:35.2411006 2023-09-06T08:21:26.3251923 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering S. González 1 A.K. Sfikas 2 S. Kamnis 0000-0001-6433-3101 3 Sean John 4 N.C. Barnard 0000-0001-6027-5565 5 C. Gammer 0000-0003-1917-4978 6 J. Eckert 7 C.G. Garay-Reyes 8 R. Martínez-Sánchez 0000-0002-9130-4450 9 S.W. Naung 10 M. Rahmati 11 T. Keil 12 K. Durst 13 Robert Lancaster 0000-0002-1365-6944 14 64443__28741__a335f2e138554f1f9e10461103bfce87.pdf 64443.VOR.pdf 2023-10-09T17:31:17.6708111 Output 17286008 application/pdf Version of Record true © 2023 The Author(s). Published by Elsevier Ltd. Distributed under the terms of a Creative Commons Attribution 4.0 License (CC BY 4.0). true eng https://creativecommons.org/licenses/by/4.0/
title Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
spellingShingle Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
Sean John
Robert Lancaster
title_short Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
title_full Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
title_fullStr Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
title_full_unstemmed Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
title_sort Investigation of the strain rate sensitivity of CoCrFeMnNiTix (x=0, 0.3) high-entropy alloys using the shear punch test
author_id_str_mv 8332e0e483d7926c508d9309553e3497
e1a1b126acd3e4ff734691ec34967f29
author_id_fullname_str_mv 8332e0e483d7926c508d9309553e3497_***_Sean John
e1a1b126acd3e4ff734691ec34967f29_***_Robert Lancaster
author Sean John
Robert Lancaster
author2 S. González
A.K. Sfikas
S. Kamnis
Sean John
N.C. Barnard
C. Gammer
J. Eckert
C.G. Garay-Reyes
R. Martínez-Sánchez
S.W. Naung
M. Rahmati
T. Keil
K. Durst
Robert Lancaster
format Journal article
container_title Materials and Design
container_volume 233
container_start_page 112294
publishDate 2023
institution Swansea University
issn 0264-1275
1873-4197
doi_str_mv 10.1016/j.matdes.2023.112294
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
url http://dx.doi.org/10.1016/j.matdes.2023.112294
document_store_str 1
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description High entropy alloys (HEAs) are a novel class of metallic materials that exhibit a unique blend of properties due to their chemical composition and atomic arrangement. This research aims to investigate the strain rate sensitivity (SRS) of two HEA CoCrFeMnNiTix (x=0, 0.3) alloy compositions through the use of shear punch testing. This method has been proven to provide reliable results for both HEA materials, including the CoCrFeMnNiTi0.3 HEA composition which was found to be inherently brittle and contained both σ-phase and Laves phase compounds with a hardness close to 14 GPa and a soft FCC phase. Among all the testing temperatures (room temperature to 400 °C) and deflection rates (0.2, 2 and 10 mm.min-1) used, only the CoCrFeMnNi HEA alloy was found to exhibit SRS at room temperature (m = 0.0333), while for the other HEA alloy variant and testing conditions, the SRS was found to be zero. From empirical correlations and finite element analysis (FEA), the calculated value for m ranged from 0.0333-0.0359, thus evidencing that the FEA simulations provide an accurate and suitable means of capturing the deformation behaviour of such alloys when subjected to shearing.
published_date 2023-09-30T17:32:36Z
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