Insights into Plastic Localization by Crystallographic Slip from Emerging Experimental and Numerical Approaches
Advanced experimental and numerical approaches are being developed to capture the
localization of plasticity at the nanometer scale as a function of the multiscale and …
localization of plasticity at the nanometer scale as a function of the multiscale and …
Dislocation avalanches are like earthquakes on the micron scale
Compression experiments on micron-scale specimens and acoustic emission (AE)
measurements on bulk samples revealed that the dislocation motion resembles a stick-slip …
measurements on bulk samples revealed that the dislocation motion resembles a stick-slip …
[HTML][HTML] Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces
Nanoindentation experiments in metal surfaces are characterized by the onset of plastic
instabilities along with the development of permanent nanoimprints and dense defect …
instabilities along with the development of permanent nanoimprints and dense defect …
Coupled size and temperature effects on intermittent plasticity of BCC micro-crystals
The intermittent plasticity of pure Mo microcrystals with diameters from 500 to 3500 nm was
studied using micro-pillar compression methodology at temperatures ranging from 25° C to …
studied using micro-pillar compression methodology at temperatures ranging from 25° C to …
Observation of bulk plasticity in a polycrystalline titanium alloy by diffraction contrast tomography and topotomography
The mechanical properties of polycrystalline metals are governed by the interaction of
defects that are generated by deformation within the 3D microstructure. In materials that …
defects that are generated by deformation within the 3D microstructure. In materials that …
[HTML][HTML] Intermittent tensile deformation of silver microcastings: Influence of the strain rate
L Borasi, A Mortensen - Scripta Materialia, 2024 - Elsevier
We compare the uniaxial tensile behavior of µm-scale cast silver tensile specimens at strain
rates of 10− 3 s− 1 and 2 s− 1 to find no major impact of the strain rate on either of the flow …
rates of 10− 3 s− 1 and 2 s− 1 to find no major impact of the strain rate on either of the flow …
Statistical analogies between earthquakes, micro-quakes in metals and avalanches in the 1D Burridge-Knopoff model
Universalities and intriguing analogies in the statistics of avalanches are revealed for three
physical systems defined on largely different length and energy scales. Earthquakes …
physical systems defined on largely different length and energy scales. Earthquakes …
A stochastic discrete slip approach to microplasticity: Application to submicron W pillars
CJ Ruestes, J Segurado - International Journal of Plasticity, 2024 - Elsevier
A stochastic discrete slip approach is proposed to model plastic deformation in submicron
domains. The model is applied to the study of submicron pillar (D≤ 1 μ m) compression …
domains. The model is applied to the study of submicron pillar (D≤ 1 μ m) compression …
[HTML][HTML] On the slip burst amplitude cutoff in dislocation-rich microcrystals
L Borasi, A Mortensen - Acta Materialia, 2024 - Elsevier
The plastic deformation of small-scale face-centered cubic metals exhibits intermittent slip
burst events that appear on stress-strain curves as sudden strain jumps and/or load drops …
burst events that appear on stress-strain curves as sudden strain jumps and/or load drops …
Unraveling the temperature-dependent plastic deformation mechanisms of polycrystalline Ta implants through numerical analysis of grain boundary dynamics
Nanostructured tantalum (Ta)-based dental implants have recently attracted significant
attention thanks to their superior biocompatibility and bioactivity as compared to their …
attention thanks to their superior biocompatibility and bioactivity as compared to their …