Review on superior strength and enhanced ductility of metallic nanomaterials

IA Ovid'Ko, RZ Valiev, YT Zhu - Progress in materials science, 2018 - Elsevier
Nanostructured metallic materials having nanocrystalline and ultrafine-grained structures
show exceptional mechanical properties, eg superior strength, that are very attractive for …

Nanomechanics of Hall–Petch relationship in nanocrystalline materials

CS Pande, KP Cooper - Progress in Materials Science, 2009 - Elsevier
Classical Hall–Petch relation for large grained polycrystals is usually derived using the
model of dislocation pile-up first investigated mathematically by Nabarro and coworkers. In …

Direct observation of deformation-induced grain growth during the nanoindentation of ultrafine-grained Al at room temperature

M Jin, AM Minor, EA Stach, JW Morris Jr - Acta Materialia, 2004 - Elsevier
In situ nanoindentation within a transmission electron microscope is used to investigate the
deformation mechanisms in ultrafine-grained Al films. Deformation-induced grain growth …

Crossover from grain boundary sliding to rotational deformation in nanocrystalline materials

MY Gutkin, IA Ovid'Ko, NV Skiba - Acta Materialia, 2003 - Elsevier
A theoretical model is suggested which describes cooperative action of grain boundary (GB)
sliding and rotational deformation in mechanically loaded nanocrystalline materials …

[图书][B] Plastic deformation in nanocrystalline materials

M Gutkin, I Ovid'ko - 2013 - books.google.com
It seems there is no special need to comment on the term'nanostructure'now, when one often
meets the'nano'words not only in scientific journals but even in newspapers. Moreover …

Triple junction nanocracks in deformed nanocrystalline materials

IA Ovid'Ko, AG Sheinerman - Acta Materialia, 2004 - Elsevier
A theoretical model is suggested which describes the generation and evolution of nanoscale
cracks (nanocracks) at triple junctions of grain boundaries in deformed nanocrystalline …

Deformation and diffusion modes in nanocrystalline materials

IA Ovid'Ko - International materials reviews, 2005 - journals.sagepub.com
An overview of theoretical models of plastic deformation and diffusion processes in
nanocrystalline (nano–grained) materials is presented. The key experimentally detected …

Transformations of grain boundaries in deformed nanocrystalline materials

SV Bobylev, MY Gutkin, IA Ovid'Ko - Acta Materialia, 2004 - Elsevier
Theoretical models are suggested which describe transformations of grain boundaries in
nanocrystalline materials under plastic deformation. We consider such transformations as …

Special rotational deformation and grain size effect on fracture toughness of nanocrystalline materials

H Feng, QH Fang, LC Zhang, YW Liu - International Journal of Plasticity, 2013 - Elsevier
A grain size-dependent model is theoretically suggested to describe the combined effects of
special rotational deformation and dislocations near a mode I crack tip on the fracture …

Special rotational deformation as a toughening mechanism in nanocrystalline solids

NF Morozov, IA Ovid'Ko, AG Sheinerman… - Journal of the Mechanics …, 2010 - Elsevier
A theoretical model is suggested which describes the effect of special rotational deformation
on crack growth in deformed nanocrystalline ceramics and metals. Within the model, the …