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 proceedingChapter

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 languageEnglish
Title of host publicationFusion Materials Research at Oak Ridge National Laboratory in Fiscal Year 2016
EditorsF. W. Wiffen, Y. Katoh, S. Melton
Place of PublicationOak Ridge, Tennessee
PublisherUS Department of Energy
Pages63-66
Number of pages4
DOIs
Publication statusPublished - Nov 2016

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entropy
irradiation
radiation tolerance
ion irradiation
ion accelerators
transmission electron microscopy
microstructure
nuclear reactors
Gibbs free energy
solid solutions
methodology
augmentation

Cite this

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). Oak Ridge, Tennessee: US Department of Energy. https://doi.org/10.2172/1334481
Edmondson, Philip D. ; Tunes, Matheus Araujo ; Harrison, Robert ; Greaves, Graeme ; Hinks, Jonathan ; Donnelly, Stephen. / 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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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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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; Greaves, Graeme; Hinks, Jonathan; Donnelly, Stephen.

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 proceedingChapter

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

PY - 2016/11

Y1 - 2016/11

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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.

KW - plasma physics

KW - fusion technology

KW - thermonuclear reactor materials

KW - magnetic confinement

U2 - 10.2172/1334481

DO - 10.2172/1334481

M3 - Chapter

SP - 63

EP - 66

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

A2 - Wiffen, F. W.

A2 - Katoh, Y.

A2 - Melton, S.

PB - US Department of Energy

CY - Oak Ridge, Tennessee

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 https://doi.org/10.2172/1334481