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cond-mat.mtrl-sci2026
Radiation-induced segregation in dilute Fe-Cr: A rate-theory framework for the Cr enrichment-depletion transition at the grain boundary
Russell Oplinger, Mukesh Bachhav, Karim Ahmed +1
Radiation-induced segregation (RIS) poses a significant challenge for ferritic Fe-Cr alloys under irradiation, as it can compromise mechanical integrity and increase susceptibility…
cond-mat.mtrl-sci2025
Phase-field modeling of radiation-induced composition redistribution: An application to additively manufactured austenitic Fe-Cr-Ni
Sourabh Bhagwan Kadambi, Daniel Schwen, Jia-Hong Ke +2
Multicomponent alloys undergoing irradiation damage develop radiation-induced composition redistribution at point defect sinks such as grain boundaries (GBs) and dislocations. Such…
cond-mat.mtrl-sci2024
Vacancy-mediated transport and segregation tendencies of solutes in FCC nickel under diffusional creep: A density functional theory study
Shehab Shousha, Sourabh Bhagwan Kadambi, Benjamin Beeler +1
The Nabarro-Herring (N-H) diffusional creep theory postulates the vacancy-mediated transport of atoms under a stress gradient as the creep mechanism under low-stress and high-tempe…