Fe+ ion irradiation effects in Fe-10at%Cr films irradiated at 300 °C

S. Pantousa; K. Mergia; A. Ionescu; E. Manios; S. Dellis; C. Kinane; S. Langridge; A. Caruana; U. Kentsch; S. Messoloras

Nuclear Materials and Energy (Mar 2022)

Fe+ ion irradiation effects in Fe-10at%Cr films irradiated at 300 °C

S. Pantousa,
K. Mergia,
A. Ionescu,
E. Manios,
S. Dellis,
C. Kinane,
S. Langridge,
A. Caruana,
U. Kentsch,
S. Messoloras

Affiliations

S. Pantousa: Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, Athens 15341, Greece; Department of Physics, School of Sciences, University of Athens, Athens 15772, Greece
K. Mergia: Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, Athens 15341, Greece; Corresponding author.
A. Ionescu: Cavendish Laboratory, University of Cambridge, J J Thomson Avenue 19, Cambridge CB3 0HE, UK
E. Manios: Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, Athens 15341, Greece
S. Dellis: Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, Athens 15341, Greece
C. Kinane: ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, United Kingdom
S. Langridge: ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, United Kingdom
A. Caruana: ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, United Kingdom
U. Kentsch: Ion Beam Center, Helmholtz-Zentrum Dresden-Rossendorf, Germany
S. Messoloras: Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, Athens 15341, Greece

Journal volume & issue: Vol. 30
p. 101147

Abstract

Read online

Fe-Cr alloys constitute the model systems for the investigation of radiation damage effects in ferritic-martensitic steels which are candidate structural materials for fusion reactors. In the current study Fe-10at%Cr alloy films of 70 nm thickness were irradiated by 490 keV Fe + ions at 300 °C at doses ranging from 0.5 up to 20 displacements per atom (dpa). The Fe + ion energy chosen corresponds to the energy of primary Fe(Cr) knock-on atoms from 14 MeV neutrons. The irradiation effects were investigated employing X-ray diffraction and X-ray and polarized neutron reflectivity. The irradiation produced dose dependent: a) lattice constant increase, b) grain size growth and c) Cr depletion in the matrix. These changes occur largely up to 4 dpa and afterwards the system attains a dynamic equilibrium.

Published in Nuclear Materials and Energy

ISSN: 2352-1791 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-materials-and-energy/

About the journal

Abstract

Keywords