Frontiers in the simulation of dislocations
Dislocations play a vital role in the mechanical behavior of crystalline materials during
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
Indentation size effect, geometrically necessary dislocations and pile-up effects in hardness testing of irradiated nickel
The indentation size effect response, based on dislocation density, of commercially pure Ni
irradiated at 120° C with 6MeV protons to 0.1 dpa, was compared with non-irradiated Ni …
irradiated at 120° C with 6MeV protons to 0.1 dpa, was compared with non-irradiated Ni …
Multiscale modelling of precipitation hardening in Al–Cu alloys: Dislocation dynamics simulations and experimental validation
R Santos-Güemes, B Bellón, G Esteban-Manzanares… - Acta Materialia, 2020 - Elsevier
The mechanisms of dislocation/precipitate interactions were analyzed in an Al–Cu alloy
containing a homogeneous dispersion of θ′ precipitates by means of discrete dislocation …
containing a homogeneous dispersion of θ′ precipitates by means of discrete dislocation …
Atomistically-informed hardening and kinetics models of helium bubble in irradiated tungsten
C Ji, J Hu, Z Zhuang, Y Cui - International Journal of Plasticity, 2023 - Elsevier
In fusion reactor environment, helium bubble acts as a crucial inducement to the
performance degradation of plasma facing tungsten, leading to irradiation hardening and …
performance degradation of plasma facing tungsten, leading to irradiation hardening and …
A coupled dislocation dynamics-continuum barrier field model with application to irradiated materials
A new computational methodology for 3-dimensional (3D) Discrete Dislocation Dynamics
(DDD) in barrier-strengthened materials is developed. We couple the discrete 3D DDD …
(DDD) in barrier-strengthened materials is developed. We couple the discrete 3D DDD …
Role of low-level void swelling on plasticity and failure in a 33 dpa neutron-irradiated 304 stainless steel
Radiation damage introduces a wide range of defects in structural materials depending on
the irradiation conditions. Irradiation-induced loops are known to lead to dislocation …
the irradiation conditions. Irradiation-induced loops are known to lead to dislocation …
Microstructures, mechanical properties, and irradiation tolerance of the Ti–Zr–Nb–V–Mo refractory high-entropy alloys
High-entropy alloys (HEAs) have shown a good application prospect in the structural
components of advanced nuclear reactors due to their impressive high-temperature …
components of advanced nuclear reactors due to their impressive high-temperature …
Orientation-dependent irradiation hardening in pure Zr studied by nanoindentation, electron microscopies, and crystal plasticity finite element modeling
Orientation-dependent irradiation hardening phenomena in pure Zr have been studied, and
the corresponding mechanisms investigated based on the combined use of SEM, TEM, and …
the corresponding mechanisms investigated based on the combined use of SEM, TEM, and …
Effects of precipitates and dislocation loops on the yield stress of irradiated iron
Plastic deformation of crystalline materials is governed by the features of stress-driven
motion of dislocations. In the case of irradiated steels subject to applied stresses, small …
motion of dislocations. In the case of irradiated steels subject to applied stresses, small …
Modeling materials under coupled extremes: Enabling better predictions of performance
Materials for the next generation of electric power infrastructure will be subject to harsh
service environments featuring extreme levels of stress, temperature, irradiation, and …
service environments featuring extreme levels of stress, temperature, irradiation, and …