Strain rate dependency of dislocation plasticity
Dislocation glide is a general deformation mode, governing the strength of metals. Via
discrete dislocation dynamics and molecular dynamics simulations, we investigate the strain …
discrete dislocation dynamics and molecular dynamics simulations, we investigate the strain …
Annealing‐induced hardening in ultrafine‐grained and nanocrystalline materials
J Gubicza - Advanced Engineering Materials, 2020 - Wiley Online Library
Annealing of deformed metals is considered as a process necessarily leading to softening
due to the annihilation of lattice defects. However, in ultrafine‐grained (UFG) and …
due to the annihilation of lattice defects. However, in ultrafine‐grained (UFG) and …
Crystal orientation effect on fretting fatigue induced geometrically necessary dislocation distribution in Ni-based single-crystal superalloys
The effect of crystal orientation on fretting fatigue induced crack initiation and dislocation
distribution is studied by in-situ SEM observation and electron back-scattered diffraction …
distribution is studied by in-situ SEM observation and electron back-scattered diffraction …
Temperature dependent deformation localization in irradiated tungsten
Tungsten is considered as the plasma-facing material in the nuclear fusion device, which
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
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 …
Origin of double-peak precipitation hardening in metallic alloys
Whereas conventional precipitation hardening is well-known to feature a single hardness
peak, recently, double-peak precipitation hardening was observed, where the first peak …
peak, recently, double-peak precipitation hardening was observed, where the first peak …
High-performance co-continuous Al-Ce-Mg alloy with in-situ nano-network structure fabricated by laser powder bed fusion
Abstract A novel Al-Ce-Mg alloy with an in-situ nano-network structure and improved tensile
properties was fabricated using laser powder bed fusion (LPBF). The microstructure of the …
properties was fabricated using laser powder bed fusion (LPBF). The microstructure of the …
A concurrent irradiation-mechanics multiscale coupling model
The vast majority of our current knowledge regarding the basic mechanisms controlling
irradiation effect on mechanical properties is based almost entirely on the results of post …
irradiation effect on mechanical properties is based almost entirely on the results of post …
An efficient 2D discrete dislocation Dynamics-XFEM coupling framework and its application to polycrystal plasticity
A new efficient framework coupling the two dimensional (2D) discrete dislocation dynamics
(DDD) and the extended finite element method (XFEM) is developed for modeling the …
(DDD) and the extended finite element method (XFEM) is developed for modeling the …
[HTML][HTML] A new method to model dislocation self-climb dominated by core diffusion
The mobility of atoms in dislocation core regions is many orders of magnitude faster than in
the surrounding lattice. This rapid atomic transport along dislocation cores plays a significant …
the surrounding lattice. This rapid atomic transport along dislocation cores plays a significant …