Migration and clustering of early-stage irradiation damage in vanadium

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Sammanfattning

A detailed understanding of the irradiation-induced damage evolution is valuable when considering materials for extreme environments, such as in fusion applications. In this work, irradiation-induced pointlike defects and their recovery kinetics in vanadium are studied with positron annihilation spectroscopy. The defects were created with 10 MeV proton irradiation at cryogenic temperatures. Several distinct recovery stages are found, at 60 K, 100 K, 150 to 250 K, and 375 to 475 K. These are interpreted as the motion of self-interstitial atoms, monovacancies, clusters of vacancies and multivacancy-hydrogen complexes. These observations allow for estimating migration barriers for the elementary defects.

Originalspråkengelska
Artikelnummer113602
TidskriftPhysical Review Materials
Volym8
Nummer11
Antal sidor9
ISSN2475-9953
DOI
StatusPublicerad - nov. 2024
MoE-publikationstypA1 Tidskriftsartikel-refererad

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© 2024 American Physical Society.

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