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Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications

Aneeqa Khan, Robert Elliman, Cormac Corr, Joven J.H. Lim, Andrew Forrest, Paul Mummery, Llion Evans Orcid Logo

Journal of Nuclear Materials, Volume: 477, Pages: 42 - 49

Swansea University Author: Llion Evans Orcid Logo

Abstract

As-received and annealed tungsten samples were irradiated at a temperature of 400 °C with Re and W ions to peak concentrations of 1600 appm (atomic parts per million) and damage levels of 40 dpa (displacements per atom). Mechanical properties were investigated using nanoindentation, and the orientat...

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Published in: Journal of Nuclear Materials
ISSN: 0022-3115
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa39996
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spelling 2020-07-10T14:30:28.3113951 v2 39996 2018-05-08 Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications 74dc5084c47484922a6e0135ebcb9402 0000-0002-4964-4187 Llion Evans Llion Evans true false 2018-05-08 MECH As-received and annealed tungsten samples were irradiated at a temperature of 400 °C with Re and W ions to peak concentrations of 1600 appm (atomic parts per million) and damage levels of 40 dpa (displacements per atom). Mechanical properties were investigated using nanoindentation, and the orientation and depth dependence of irradiation damage was investigated using Electron Back Scatter Diffraction (EBSD). Following irradiation there was a 13% increase in hardness in the as received sheet and a 23% increase in the annealed material for both tungsten and rhenium irradiation. The difference between the tungsten and rhenium irradiated samples was negligible, suggesting that for the concentrations and damage levels employed, the presence of rhenium does not have a significant effect on the hardening mechanism. Energy dependent EBSD of annealed samples provided information about the depth distribution of the radiation damage in individual tungsten grains and confirmed that the radiation damage is orientation dependant. Journal Article Journal of Nuclear Materials 477 42 49 0022-3115 radiation damage, fusion, tungsten, rhenium, nanoindentation, electron back scatter diffraction, mechanical properties 15 8 2016 2016-08-15 10.1016/j.jnucmat.2016.05.003 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University EPSRC, University of Manchester 2020-07-10T14:30:28.3113951 2018-05-08T11:13:06.9507357 College of Engineering Engineering Aneeqa Khan 1 Robert Elliman 2 Cormac Corr 3 Joven J.H. Lim 4 Andrew Forrest 5 Paul Mummery 6 Llion Evans 0000-0002-4964-4187 7 0039996-08052018141818.pdf JNucMat_Khan2016.pdf 2018-05-08T14:18:18.3730000 Output 3394039 application/pdf Version of Record true 2018-05-08T00:00:00.0000000 true eng
title Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
spellingShingle Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
Llion Evans
title_short Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
title_full Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
title_fullStr Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
title_full_unstemmed Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
title_sort Effect of rhenium irradiations on the mechanical properties of tungsten for nuclear fusion applications
author_id_str_mv 74dc5084c47484922a6e0135ebcb9402
author_id_fullname_str_mv 74dc5084c47484922a6e0135ebcb9402_***_Llion Evans
author Llion Evans
author2 Aneeqa Khan
Robert Elliman
Cormac Corr
Joven J.H. Lim
Andrew Forrest
Paul Mummery
Llion Evans
format Journal article
container_title Journal of Nuclear Materials
container_volume 477
container_start_page 42
publishDate 2016
institution Swansea University
issn 0022-3115
doi_str_mv 10.1016/j.jnucmat.2016.05.003
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description As-received and annealed tungsten samples were irradiated at a temperature of 400 °C with Re and W ions to peak concentrations of 1600 appm (atomic parts per million) and damage levels of 40 dpa (displacements per atom). Mechanical properties were investigated using nanoindentation, and the orientation and depth dependence of irradiation damage was investigated using Electron Back Scatter Diffraction (EBSD). Following irradiation there was a 13% increase in hardness in the as received sheet and a 23% increase in the annealed material for both tungsten and rhenium irradiation. The difference between the tungsten and rhenium irradiated samples was negligible, suggesting that for the concentrations and damage levels employed, the presence of rhenium does not have a significant effect on the hardening mechanism. Energy dependent EBSD of annealed samples provided information about the depth distribution of the radiation damage in individual tungsten grains and confirmed that the radiation damage is orientation dependant.
published_date 2016-08-15T03:54:13Z
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