Portal de Periódicos da CAPES

Defect behaviour in the MoNbTaVW high entropy alloy (HEA)

2022; Elsevier BV; Volume: 15; Linguagem: Inglês

10.1016/j.rinma.2022.100320

2590-048X

A.X. Lin-Vines, Jack A. Wilson, Alberto Fraile, L. J. Evitts, M.J.D. Rushton, Jack Astbury, William Lee, Simon C. Middleburgh,

Nuclear Materials and Properties

The intrinsic defect formation in the MoNbTaVW HEA is investigated using atomic scale modelling, the goal being to assess its response to radiation damage in its possible use as plasma facing material for fusion reactors. When interstitial defects were modelled, a strong preference to form split interstitial defects containing vanadium was observed, even forming when other interstitial elements were initially placed into the structure. Vacancies and Frenkel pair formation are also modelled and discussed. The distinct behaviour of defects in this HEA has implications for this system as well as related HEAs and their use in nuclear components.