Nanomaterials by severe plastic deformation: review of historical developments and recent advances

K Edalati, A Bachmaier, VA Beloshenko… - Materials Research …, 2022 - Taylor & Francis
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and
nanostructured materials with large densities of lattice defects. This field, also known as …

Recent in situ experimental and theoretical advances in severe plastic deformations, strain-induced phase transformations, and microstructure evolution under high …

VI Levitas - Materials transactions, 2023 - jstage.jst.go.jp
Severe plastic deformations (SPD) under high pressure, mostly by high-pressure torsion, are
employed for producing nanostructured materials and stable or metastable high-pressure …

High-pressure phase transformations under severe plastic deformation by torsion in rotational anvils

VI Levitas - Materials Transactions, 2019 - jstage.jst.go.jp
Numerous experiments have documented that combination of severe plastic deformation
and high mean pressure during high-pressure torsion in rotational metallic, ceramic, or …

Phase transformations, fracture, and other structural changes in inelastic materials

VI Levitas - International Journal of Plasticity, 2021 - Elsevier
Review of selected fundamental topics on the interaction between phase transformations,
fracture, and other structural changes in inelastic materials is presented. It mostly focuses on …

Stress-assisted (γ→ α′) and strain-induced (γ→ ε→ α′) phase transformation kinetics laws implemented in a crystal plasticity model for predicting strain path …

Z Feng, M Zecevic, M Knezevic - International Journal of Plasticity, 2021 - Elsevier
This paper formulates stress-assisted and strain-induced austenite to martensite
transformation kinetics laws within a crystal plasticity framework to enable modeling of strain …

In situ quantitative study of plastic strain-induced phase transformations under high pressure: Example for ultra-pure Zr

KK Pandey, VI Levitas - Acta Materialia, 2020 - Elsevier
The first in situ quantitative synchrotron X-ray diffraction (XRD) study of plastic strain-induced
phase transformation (PT) has been performed on α− ω PT in ultra-pure, strongly plastically …

[HTML][HTML] A continuum particle model for micro-scratch simulations of crystalline silicon

SO Sperling, JPM Hoefnagels, K van den Broek… - Journal of the …, 2024 - Elsevier
In order to suffice the stringent surface requirements imposed on silicon wafers, thorough
investigation of the fabrication methods is necessary. Typically, the processing conditions for …

Phase field approach for nanoscale interactions between crack propagation and phase transformation

H Jafarzadeh, VI Levitas, GH Farrahi, M Javanbakht - Nanoscale, 2019 - pubs.rsc.org
The phase field approach (PFA) for the interaction of fracture and martensitic phase
transformation (PT) is developed, which includes the change in surface energy during PT …

Amorphization induced by 60 shuffle dislocation pileup against different grain boundaries in silicon bicrystal under shear

H Chen, VI Levitas, L Xiong - Acta Materialia, 2019 - Elsevier
Molecular dynamics (MD) simulations of the amorphous band nucleation and growth ahead
of the tip of a shuffle 60 o dislocation pileup at different grain boundaries (GBs) in diamond …

[HTML][HTML] Severe plastic deformation for producing Superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary review

K Edalati, AQ Ahmed, S Akrami, K Ameyama… - Journal of Alloys and …, 2024 - Elsevier
Ultrafine-grained and heterostructured materials are currently of high interest due to their
superior mechanical and functional properties. Severe plastic deformation (SPD) is one of …