首页|(162776)Positron beam studies on the irradiation response of FeCrCoNi upon He ion implantation
(162776)Positron beam studies on the irradiation response of FeCrCoNi upon He ion implantation
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NSTL
Elsevier
Positron beam-based Doppler broadening results on He ion-implanted FeCrCoNi show distinct changes in defect-sensitive S-parameter corresponding to the formation of helium-vacancy complexes, nucleation/ growth of helium bubbles, and finally the helium bubble rupture, with isochronal annealing. Data analyses of the positron beam-based ratio curves provide clear information on the kinetics of bubble growth and rupture. The difference data in S-parameter (AS), which corresponds to the bubble growth, displays a maximum at 1123 K, with annealing temperature. Comparing the AS value to that reported for nickel, it is concluded that FeCrCoNi has higher bubble growth resistance than nickel.
High entropy alloysImplantation induced defectsPositron beamHelium bubbles
S. Abhaya、R. Rajaraman、C. David
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Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
NSTL
Elsevier
