Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications

Philip D. Edmondson; Matheus Araujo Tunes; Robert Harrison; Graeme Greaves; Jonathan Hinks; Stephen Donnelly

doi:10.2172/1334481

Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications

Philip D. Edmondson, Matheus Araujo Tunes, Robert Harrison, Graeme Greaves, Jonathan Hinks, Stephen Donnelly

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

In the search for new nuclear materials with improved radiation tolerance and behavior, the high-entropy alloys (HEAs) have arisen as new candidates for structural components in nuclear reactors due to their suspected superior stability under irradiation. The metallurgical definition of HEAs is any alloy with multiple elements, five or more all in equiatomic compositions. The basic principle is the high mixing entropy of its solid solution lowers the Gibbs free energy giving a strong enhancement of the microstructural stability at low and high temperatures.

The objective of this project is to assess the irradiation behaviour of the FeCrMnNi HEA system in order to investigate whether the high entropy effect is responsible for a microstructure with better radiation resistance compared to conventional alloys. In this work transmission electron microscopy (TEM) with in-situ ion irradiation has been used at the MIAMI-1 facility at the University of Huddersfield, UK: a 100 kV ion accelerator coupled with a JEOL JEM-2000FX TEM. This methodology allows the evolution of the HEA microstructure to be studied on the nanoscale during the ion irradiation.

Original language	English
Title of host publication	Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016
Editors	F. W. Wiffen, Y. Katoh, S. Melton
Place of Publication	Oak Ridge, Tennessee
Publisher	US Department of Energy
Pages	63-66
Number of pages	4
DOIs	https://doi.org/10.2172/1334481
Publication status	Published - Nov 2016

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Edmondson, P. D., Tunes, M. A., Harrison, R., Greaves, G., Hinks, J., & Donnelly, S. (2016). Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications. In F. W. Wiffen, Y. Katoh, & S. Melton (Eds.), Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016 (pp. 63-66). US Department of Energy. https://doi.org/10.2172/1334481

Edmondson, Philip D. ; Tunes, Matheus Araujo ; Harrison, Robert et al. / Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications. Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016. editor / F. W. Wiffen ; Y. Katoh ; S. Melton. Oak Ridge, Tennessee : US Department of Energy, 2016. pp. 63-66

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title = "Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications",

abstract = "In the search for new nuclear materials with improved radiation tolerance and behavior, the high-entropy alloys (HEAs) have arisen as new candidates for structural components in nuclear reactors due to their suspected superior stability under irradiation. The metallurgical definition of HEAs is any alloy with multiple elements, five or more all in equiatomic compositions. The basic principle is the high mixing entropy of its solid solution lowers the Gibbs free energy giving a strong enhancement of the microstructural stability at low and high temperatures.The objective of this project is to assess the irradiation behaviour of the FeCrMnNi HEA system in order to investigate whether the high entropy effect is responsible for a microstructure with better radiation resistance compared to conventional alloys. In this work transmission electron microscopy (TEM) with in-situ ion irradiation has been used at the MIAMI-1 facility at the University of Huddersfield, UK: a 100 kV ion accelerator coupled with a JEOL JEM-2000FX TEM. This methodology allows the evolution of the HEA microstructure to be studied on the nanoscale during the ion irradiation.",

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author = "Edmondson, {Philip D.} and Tunes, {Matheus Araujo} and Robert Harrison and Graeme Greaves and Jonathan Hinks and Stephen Donnelly",

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Edmondson, PD, Tunes, MA, Harrison, R, Greaves, G, Hinks, J & Donnelly, S 2016, Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications. in FW Wiffen, Y Katoh & S Melton (eds), Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016. US Department of Energy, Oak Ridge, Tennessee, pp. 63-66. https://doi.org/10.2172/1334481

Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications. / Edmondson, Philip D.; Tunes, Matheus Araujo; Harrison, Robert et al.

Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016. ed. / F. W. Wiffen; Y. Katoh; S. Melton. Oak Ridge, Tennessee : US Department of Energy, 2016. p. 63-66.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

TY - CHAP

T1 - Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications

AU - Edmondson, Philip D.

AU - Tunes, Matheus Araujo

AU - Harrison, Robert

AU - Greaves, Graeme

AU - Hinks, Jonathan

AU - Donnelly, Stephen

N1 - Report Number: ORNL/TM--2016/685

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N2 - In the search for new nuclear materials with improved radiation tolerance and behavior, the high-entropy alloys (HEAs) have arisen as new candidates for structural components in nuclear reactors due to their suspected superior stability under irradiation. The metallurgical definition of HEAs is any alloy with multiple elements, five or more all in equiatomic compositions. The basic principle is the high mixing entropy of its solid solution lowers the Gibbs free energy giving a strong enhancement of the microstructural stability at low and high temperatures.The objective of this project is to assess the irradiation behaviour of the FeCrMnNi HEA system in order to investigate whether the high entropy effect is responsible for a microstructure with better radiation resistance compared to conventional alloys. In this work transmission electron microscopy (TEM) with in-situ ion irradiation has been used at the MIAMI-1 facility at the University of Huddersfield, UK: a 100 kV ion accelerator coupled with a JEOL JEM-2000FX TEM. This methodology allows the evolution of the HEA microstructure to be studied on the nanoscale during the ion irradiation.

AB - In the search for new nuclear materials with improved radiation tolerance and behavior, the high-entropy alloys (HEAs) have arisen as new candidates for structural components in nuclear reactors due to their suspected superior stability under irradiation. The metallurgical definition of HEAs is any alloy with multiple elements, five or more all in equiatomic compositions. The basic principle is the high mixing entropy of its solid solution lowers the Gibbs free energy giving a strong enhancement of the microstructural stability at low and high temperatures.The objective of this project is to assess the irradiation behaviour of the FeCrMnNi HEA system in order to investigate whether the high entropy effect is responsible for a microstructure with better radiation resistance compared to conventional alloys. In this work transmission electron microscopy (TEM) with in-situ ion irradiation has been used at the MIAMI-1 facility at the University of Huddersfield, UK: a 100 kV ion accelerator coupled with a JEOL JEM-2000FX TEM. This methodology allows the evolution of the HEA microstructure to be studied on the nanoscale during the ion irradiation.

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BT - Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016

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A2 - Katoh, Y.

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PB - US Department of Energy

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ER -

Edmondson PD, Tunes MA, Harrison R, Greaves G, Hinks J, Donnelly S. Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications. In Wiffen FW, Katoh Y, Melton S, editors, Fusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016. Oak Ridge, Tennessee: US Department of Energy. 2016. p. 63-66 doi: 10.2172/1334481

Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications

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