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

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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

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.

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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

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.

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

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.

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Titel:

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

Beteiligte:

S. Pantousa (Autor:in) / K. Mergia (Autor:in) / A. Ionescu (Autor:in) / E. Manios (Autor:in) / S. Dellis (Autor:in) / C. Kinane (Autor:in) / S. Langridge (Autor:in) / A. Caruana (Autor:in) / U. Kentsch (Autor:in) / S. Messoloras (Autor:in)

Erschienen in:

Nuclear Materials and Energy, Vol 30, Iss , Pp 101147- (2022)

Erscheinungsdatum:

2022

ISSN:

DOI:

https://doi.org/10.1016/j.nme.2022.101147

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Unbekannt

Schlagwörter:

Fe-Cr alloys , Ion irradiation , Lattice damage , Cr depletion , Polarized neutron reflectivity , Magnetization , Nuclear engineering. Atomic power , TK9001-9401

Metadata by DOAJ is licensed under CC BY-SA 1.0

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