Insights into Plastic Localization by Crystallographic Slip from Emerging Experimental and Numerical Approaches

JC Stinville, MA Charpagne, R Maaß… - Annual Review of …, 2023 - annualreviews.org
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 …

[HTML][HTML] Multibranches of acoustic emission as identifier for deformation mechanisms in additively manufactured 316l stainless steel

Y Chen, B Gou, X Xu, X Ding, J Sun, EKH Salje - Additive Manufacturing, 2023 - Elsevier
The multiple collapse mechanisms of complex materials produced by additive
manufacturing (AM) were identified by measurements of the acoustic emission (AE) of the …

Crackling noise microscopy

CPT Nguyen, P Schoenherr, EKH Salje… - Nature …, 2023 - nature.com
Crackling noise is a scale-invariant phenomenon found in various driven nonlinear
dynamical material systems as a response to external stimuli such as force or external fields …

Coupled size and temperature effects on intermittent plasticity of BCC micro-crystals

P Zhang, P Cheng, J Zhang, G Liu, J Weiss, J Sun - Acta Materialia, 2023 - Elsevier
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 …

[HTML][HTML] Slip intermittency and dwell fatigue in titanium alloys: a discrete dislocation plasticity analysis

Y Xu, FF Worsnop, D Dye, FPE Dunne - … of the Mechanics and Physics of …, 2023 - Elsevier
Slip intermittency and stress oscillations in titanium alloy Ti–7Al–O that were observed using
in-situ far-field high energy X-ray diffraction microscopy (ff-HEDM) are investigated using a …

Dislocation-precipitate interactions in crystals: from the BKS model to collective dislocation dynamics

L Laurson, MJ Alava - Journal of Materials Science: Materials Theory, 2024 - Springer
The increase in the yield stress due to the presence of obstacles to dislocation motion such
as precipitates is a multiscale phenomenon. The details on the nanoscale when an …

Intermittent microplasticity in the presence of a complex microstructure

Q Rizzardi, PM Derlet, R Maaß - Physical Review Materials, 2022 - APS
We demonstrate the gradual shift from scale-free intermittent microplasticity to a scale-
dependent behavior via the introduction of a variety of microstructural features within the Al …

Phase-field dislocation dynamics simulations of temperature-dependent glide mechanisms in niobium

MR Jones, LTW Fey, IJ Beyerlein - Computational Materials Science, 2024 - Elsevier
In this work, we present a three-dimensional ab-initio informed phase-field-dislocation
dynamics model combined with Langevin dynamics to investigate glide mechanisms of …

[HTML][HTML] Deformation behaviors in light of dislocation core characteristics with respect to the compositional-dependent misfit potentials of aluminum alloys

J Du, Y Liu, Z Zhang, SL Shang, H Li, ZK Liu… - Journal of Materials …, 2023 - Elsevier
Dislocation core dominates dislocation mobility and mechanical properties of crystalline
solids. To date, a complete landscape for describing dislocation with narrow core in metals …

Strong and ductile niobium-based refractory alloy via deformable zirconia nanoparticles

J Chen, C Liu, Y Wang, W Ding, Q Tao, G Chen… - International Journal of …, 2024 - Elsevier
The use of dispersed precipitates is an effective method for strengthening metals, but it
typically results in a reduction in ductility. A potential way to overcome this strength-ductility …