Thermodynamic modeling of G-phase and assessment of phase stabilities in reactor pressure vessel steels and cast duplex stainless steels

摘要

Thermodynamic modeling of G-phase in iron-based multicomponent systems was revised and updated by means of a careful literature survey. The thermodynamic parameters were optimized based on DFT data. Additionally intermetallic phases with possible competition to G-phase in multicomponent systems were also optimized. The thermodynamic model parameters were added to multicomponent thermodynamic database and used for calculation of technological steels and possible competition between phases are tested and shown. (c) 2020 Elsevier B.V. All rights reserved.