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High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation

A. Fernández-Caballero, E. Bousser, S.M. Shubeita, P.T. Wady, Yuchen Gu, Ram Krishna, M.J. Gorley, D. Nguyen-Manh, P.M. Mummery, E.J. Pickering

Nuclear Materials and Energy, Volume: 28, Start page: 101028

Swansea University Author: Yuchen Gu

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DOI (Published version): 10.1016/j.nme.2021.101028

Abstract

One of the key challenges for the development of high-performance fusion materials is to design materials capable of maintaining mechanical and structural integrity under the extreme levels of displacement damage, high temperature and transmutation rates. High-entropy alloys (HEAs) and other concent...

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Published in: Nuclear Materials and Energy
ISSN: 2352-1791
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa57101
first_indexed 2021-06-11T10:50:14Z
last_indexed 2021-06-12T03:23:24Z
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spelling 2021-06-11T11:53:42.4818141 v2 57101 2021-06-11 High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation 615b64048381eea559251d5953bb3cd6 Yuchen Gu Yuchen Gu true false 2021-06-11 EAAS One of the key challenges for the development of high-performance fusion materials is to design materials capable of maintaining mechanical and structural integrity under the extreme levels of displacement damage, high temperature and transmutation rates. High-entropy alloys (HEAs) and other concentrated alloys have attracted attention with regards to their performance under fusion conditions. In recent years, a number of investigations of the irradiation responses of HEAs have peaked the community’s interest in them, such as the work of Kumar et al. (2016), who examined Fe27Ni28Mn27Cr18 at doses as high as 10 dpa. In this work, we study Fe28Ni28Mn26Cr18 concentrated multicomponent alloy with irradiation doses as high as 20 dpa. We find the presence of Cr rich bcc precipitates in both the un-irradiated and in the irradiated condition, and the presence of dislocation loops only in the irradiated state. We correlate the features found with irradiation hardening by the continuous stiffness method (CSM) depth-sensing nanoindentation technique and see that the change in the bulk hardness increases significantly at 20 dpa for temperatures 450 °C. These results indicate that the alloy is neither stable as a single phase after annealing at 900 °C, nor particularly resistant to irradiation hardening. Journal Article Nuclear Materials and Energy 28 101028 Elsevier BV 2352-1791 High-entropy alloy; Multicomponent alloy; Irradiation; Dislocation loops; TEM; STEM-EDX; XRD; Hardness; Depth-sensing nanoindentation 1 9 2021 2021-09-01 10.1016/j.nme.2021.101028 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University Euratom research and training programme Grant: 633053 Research Council UK (RCUK) Energy Programme Grant: EP/P012450/1 EPSRC Grant: EP/L01680X/1 2021-06-11T11:53:42.4818141 2021-06-11T11:35:48.9404077 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering A. Fernández-Caballero 1 E. Bousser 2 S.M. Shubeita 3 P.T. Wady 4 Yuchen Gu 5 Ram Krishna 6 M.J. Gorley 7 D. Nguyen-Manh 8 P.M. Mummery 9 E.J. Pickering 10 57101__20133__ce8dedc4b1764dd89b121ad603873201.pdf 57101.pdf 2021-06-11T11:51:50.0188526 Output 6848030 application/pdf Version of Record true © 2021 The Authors. This is an open access article under the CC BY-NC-ND license true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
spellingShingle High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
Yuchen Gu
title_short High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
title_full High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
title_fullStr High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
title_full_unstemmed High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
title_sort High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation
author_id_str_mv 615b64048381eea559251d5953bb3cd6
author_id_fullname_str_mv 615b64048381eea559251d5953bb3cd6_***_Yuchen Gu
author Yuchen Gu
author2 A. Fernández-Caballero
E. Bousser
S.M. Shubeita
P.T. Wady
Yuchen Gu
Ram Krishna
M.J. Gorley
D. Nguyen-Manh
P.M. Mummery
E.J. Pickering
format Journal article
container_title Nuclear Materials and Energy
container_volume 28
container_start_page 101028
publishDate 2021
institution Swansea University
issn 2352-1791
doi_str_mv 10.1016/j.nme.2021.101028
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
document_store_str 1
active_str 0
description One of the key challenges for the development of high-performance fusion materials is to design materials capable of maintaining mechanical and structural integrity under the extreme levels of displacement damage, high temperature and transmutation rates. High-entropy alloys (HEAs) and other concentrated alloys have attracted attention with regards to their performance under fusion conditions. In recent years, a number of investigations of the irradiation responses of HEAs have peaked the community’s interest in them, such as the work of Kumar et al. (2016), who examined Fe27Ni28Mn27Cr18 at doses as high as 10 dpa. In this work, we study Fe28Ni28Mn26Cr18 concentrated multicomponent alloy with irradiation doses as high as 20 dpa. We find the presence of Cr rich bcc precipitates in both the un-irradiated and in the irradiated condition, and the presence of dislocation loops only in the irradiated state. We correlate the features found with irradiation hardening by the continuous stiffness method (CSM) depth-sensing nanoindentation technique and see that the change in the bulk hardness increases significantly at 20 dpa for temperatures 450 °C. These results indicate that the alloy is neither stable as a single phase after annealing at 900 °C, nor particularly resistant to irradiation hardening.
published_date 2021-09-01T14:06:01Z
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