Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications

Given the increasing demand for energy and the rising cost of fossil fuels, the development of nuclear fission and fusion reactors has become a key priority. Recently, High Entropy Alloys (HEAs) and Medium Entropy Alloys (MEAs) have emerged as promising materials for use in nuclear reactors due to t...

Full description

Bibliographic Details
Main Authors: Hobhaydar, Arman, Wang, Xiao, Wang, Yangfan, Li, Huijun, Tran, Nam Van, Zhu, Hongtao
Other Authors: School of Materials Science and Engineering
Format: Journal Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/171186
_version_ 1826113059928670208
author Hobhaydar, Arman
Wang, Xiao
Wang, Yangfan
Li, Huijun
Tran, Nam Van
Zhu, Hongtao
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Hobhaydar, Arman
Wang, Xiao
Wang, Yangfan
Li, Huijun
Tran, Nam Van
Zhu, Hongtao
author_sort Hobhaydar, Arman
collection NTU
description Given the increasing demand for energy and the rising cost of fossil fuels, the development of nuclear fission and fusion reactors has become a key priority. Recently, High Entropy Alloys (HEAs) and Medium Entropy Alloys (MEAs) have emerged as promising materials for use in nuclear reactors due to their unique properties, which include significant lattice distortion, high configurational entropy, reduced diffusivity, and the cocktail effect. In this study, we designed and analysed a series of FeCrV-based Refractory Medium-entropy Alloys (RMEAs) as structural materials in fusion reactors, using Density Functional Theory. By calculating the empirical parameters, we have verified the solid solution's structure stability of the FeCrV-based RMEA. We examined the mechanical, electronic, and irradiation resistance properties of these alloys and found that the incorporation of tungsten dopants could enhance both the mechanical properties and irradiation resistance of the materials, with the optimal doping level being approximately 8% of Tungsten. Furthermore, electronic structure calculations were performed to elucidate the underlying mechanisms. This knowledge can guide the development of new HEA/MEA materials for use in nuclear reactors.
first_indexed 2024-10-01T03:17:21Z
format Journal Article
id ntu-10356/171186
institution Nanyang Technological University
language English
last_indexed 2024-10-01T03:17:21Z
publishDate 2023
record_format dspace
spelling ntu-10356/1711862023-10-17T01:48:08Z Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications Hobhaydar, Arman Wang, Xiao Wang, Yangfan Li, Huijun Tran, Nam Van Zhu, Hongtao School of Materials Science and Engineering Engineering::Materials High Entropy Alloys Medium Entropy Alloy Given the increasing demand for energy and the rising cost of fossil fuels, the development of nuclear fission and fusion reactors has become a key priority. Recently, High Entropy Alloys (HEAs) and Medium Entropy Alloys (MEAs) have emerged as promising materials for use in nuclear reactors due to their unique properties, which include significant lattice distortion, high configurational entropy, reduced diffusivity, and the cocktail effect. In this study, we designed and analysed a series of FeCrV-based Refractory Medium-entropy Alloys (RMEAs) as structural materials in fusion reactors, using Density Functional Theory. By calculating the empirical parameters, we have verified the solid solution's structure stability of the FeCrV-based RMEA. We examined the mechanical, electronic, and irradiation resistance properties of these alloys and found that the incorporation of tungsten dopants could enhance both the mechanical properties and irradiation resistance of the materials, with the optimal doping level being approximately 8% of Tungsten. Furthermore, electronic structure calculations were performed to elucidate the underlying mechanisms. This knowledge can guide the development of new HEA/MEA materials for use in nuclear reactors. The authors would like to acknowledge the support from Australian Research Council Linkage Project- LP220200602. This research/project was undertaken with the assistance of resources and services from the National Computational Infrastructure (NCI), which is supported by the Australian Government. 2023-10-17T01:48:08Z 2023-10-17T01:48:08Z 2023 Journal Article Hobhaydar, A., Wang, X., Wang, Y., Li, H., Tran, N. V. & Zhu, H. (2023). Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications. Journal of Alloys and Compounds, 966, 171635-. https://dx.doi.org/10.1016/j.jallcom.2023.171635 0925-8388 https://hdl.handle.net/10356/171186 10.1016/j.jallcom.2023.171635 2-s2.0-85166920097 966 171635 en Journal of Alloys and Compounds © 2023 Elsevier B.V. All rights reserved.
spellingShingle Engineering::Materials
High Entropy Alloys
Medium Entropy Alloy
Hobhaydar, Arman
Wang, Xiao
Wang, Yangfan
Li, Huijun
Tran, Nam Van
Zhu, Hongtao
Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title_full Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title_fullStr Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title_full_unstemmed Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title_short Effect of tungsten doping on the irradiation resistance of FeCrV-based refractory medium entropy alloy for potential nuclear applications
title_sort effect of tungsten doping on the irradiation resistance of fecrv based refractory medium entropy alloy for potential nuclear applications
topic Engineering::Materials
High Entropy Alloys
Medium Entropy Alloy
url https://hdl.handle.net/10356/171186
work_keys_str_mv AT hobhaydararman effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications
AT wangxiao effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications
AT wangyangfan effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications
AT lihuijun effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications
AT trannamvan effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications
AT zhuhongtao effectoftungstendopingontheirradiationresistanceoffecrvbasedrefractorymediumentropyalloyforpotentialnuclearapplications