Different Chromium Content and Thermal Annealing Influence on Ions Implanted Fe-Cr Model Alloys

Sojak, Stanislav; Slugeň, V.; Kršjak, Vladimír; Egger, Werner; Ravelli, L.; Petriska, Martin; Stanček, S.; Skarba, Michal; Priputen, P.; Vitázek, K.; Stacho, M.; Veterníková, Jana; Sabelová, V.

doi:10.1016/j.phpro.2012.06.015

Cited by 3 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, Equations (1)-(6) of CD will be complimented in the next simulations by the equations, which describe the formation of the chromium and iron carbides, in order to complete a study of the non-monotonous mean size dependence of VC on the chromium content observed in (8). More detailed information about the mechanism of helium implantation of Fe-Cr alloys will be provided by adding equations, which describe the formation of He-vacancies complexes (23) and the application of the CD code (24) to interpret the space distribution of defects from the Pulsed Low Energy Positron System (PLEPS) experiment (25,26). …”

Section: Discussionmentioning

confidence: 99%

Cluster dynamics study of damage accumulation in helium-implanted Fe–2.5at%Cr alloy

Gokhman

Pecko

Slugeň

2015

Radiation Effects and Defects in Solids

View full text Add to dashboard Cite

Cluster dynamics (CD) study of damage accumulation has been performed for helium-implanted Fe-2.5 at%Cr alloy with the flux of 7 × 10 −6 dpa/s at the temperature of 343 K. Findings confirm the nonmonotonic dose dependence of the vacancy clusters mean size for irradiation doses from 0.15 to 0.74 dpa, observed in the positron annihilation spectroscopy experiment. The effect of the chromium and carbon atoms on the formation and kinetics of point defects clusters has been taken into account. The ratio of vacancies formed to cluster to the total number of surveillance vacancies at the end of the cascade stage (irradiation parameter f vcl ) and migration energy of vacancies in bcc iron (material parameter E mv ) have been varied to provide the best fit of CD simulation results to positron annihilation spectroscopy data on the positron lifetime in defects. The calibrated CD model has been used to study the effect of the presence of vacancy clusters in the non-irradiated state Fe-2.5at%Cr alloy on the evolution of point defect clusters in this material due to helium implantation.

show abstract