Modeling radiation induced segregation in iron–chromium alloys

O Senninger, F Soisson, E Martínez, M Nastar, CC Fu… - Acta Materialia, 2016 - Elsevier
Radiation induced segregation in ferritic Fe–Cr alloys is studied by Atomistic Kinetic Monte
Carlo simulations that include diffusion of chemical species by vacancy and interstitial …

Interaction between vacancies and interstitial solutes (C, N, and O) in : From electronic structure to thermodynamics

C Barouh, T Schuler, CC Fu, M Nastar - Physical Review B, 2014 - APS
The interplay between vacancies (V) and interstitial solutes X (X= C, N, and O) and its impact
on thermodynamic properties of α-Fe solid solutions are studied, starting from first principles …

Study of the interaction of solutes with Σ5 (013) tilt grain boundaries in iron using density-functional theory

H **, I Elfimov, M Militzer - Journal of Applied Physics, 2014 - pubs.aip.org
Substitutional alloying elements significantly affect the recrystallization and austenite-ferrite
phase transformation rates in steels. The atomistic mechanisms of their interaction with the …

[HTML][HTML] Revised thermodynamic description of the Fe-Cr system based on an improved sublattice model of the σ phase

A Jacob, E Povoden-Karadeniz, E Kozeschnik - Calphad, 2018 - Elsevier
Abstract The Fe-Cr system is re-assessed, focusing on an improved modeling of σ phase.
The three sublattice model (Cr, Fe) 10 (Cr, Fe) 4 (Cr, Fe) 16 is parameterized to model the σ …

Magnetochemical effects on phase stability and vacancy formation in fcc fe-ni alloys

K Li, CC Fu, M Nastar, F Soisson, MY Lavrentiev - Physical Review B, 2022 - APS
We investigate phase stability and vacancy formation in fcc Fe-Ni alloys over a broad
composition-temperature range, via a density functional theory parametrized effective …

Decomposition kinetics of Fe-Cr solid solutions during thermal aging

E Martínez, O Senninger, CC Fu, F Soisson - Physical Review B—Condensed …, 2012 - APS
The decomposition of Fe-Cr solid solutions during thermal aging is modeled by atomistic
kinetic Monte Carlo simulations, using a rigid lattice approximation with pair interactions that …

From high entropy alloys to diluted multi-component alloys: Range of existence of a solid-solution

M Laurent-Brocq, L Perrière, R Pirès, Y Champion - Materials & design, 2016 - Elsevier
In order to systematically compare high entropy alloys (HEA) and conventional diluted multi-
component alloys and to observe the transition between both, 13 Cr x Mn x Fe x Co x Ni …

Atomic Diffusion in -iron across the Curie Point: An Efficient and Transferable Ab Initio–Based Modeling Approach

A Schneider, CC Fu, F Soisson, C Barreteau - Physical Review Letters, 2020 - APS
An accurate prediction of atomic diffusion in Fe alloys is challenging due to thermal
magnetic excitations and magnetic transitions. We propose an efficient approach to address …

Mixing enthalpy near grain boundaries in Fe-Cr alloy: The results of atomistic simulation

MY Tikhonchev, RM Meftakhutdinov… - Journal of Nuclear …, 2023 - Elsevier
Energy characteristics of symmetric tilt (twin) grain boundaries (GBs) Σ5 (210) and Σ5 (310)
with the tilt axis [001] and boundaries Σ3 (111) and Σ3 (112) with the tilt axis [1 1¯ 0] in a bcc …

Radiation induced segregation near dislocations and symmetric tilt grain boundaries in Fe-Cr alloys: A phase-field study

GFB Moladje, L Thuinet, CS Becquart, A Legris - Acta Materialia, 2022 - Elsevier
A phase-field model dedicated to dislocation climb under irradiation has been coupled to
point defects and chemical species transport equations. It allows to predict radiation induced …