Atomic-scale mechanisms of void strengthening in tungsten

YN Osetsky - Tungsten, 2021 - Springer
… those obtained earlier for voids in body centered cubic (bcc) iron. An important role of the …
controlled by strong obstacles, like voids, the dispersed barrier hardening (DBH) model is often …

[HTML][HTML] Atomistic analysis of the mechanisms underlying irradiation-hardening in Fe-Ni-Cr alloys

A Ustrzycka, FJ Dominguez-Gutierrez… - International Journal of …, 2024 - Elsevier
… of radiation hardening is intricately linked to the atomic-scale mechanisms of interaction
between … We identify a mechanism wherein dislocations cut through voids, leading to increased …

Advances in experimental mechanics at atomic scale

S Zheng, SX Mao - Extreme Mechanics Letters, 2021 - Elsevier
… Thus, the dominated deformation mechanism in BCC small-volume metals is similar to the
forest-hardening model in bulk metals, and the strengthening power-law exponents is nearly −…

Exploring the effects of the sheared voids on the hardening of tungsten using atomistic simulations

P Yu, G Liu, K Wu, Y Cui, G Zhao, Y Shen - Journal of Nuclear Materials, 2022 - Elsevier
… usually ignore atomic-scale mechanisms during dislocation-voids interactions, such as
microstructural changes in void shape, … is relatively slow in bcc W. This gradually weakened …

Atomic-scale hidden point-defect complexes induce ultrahigh-irradiation hardening in tungsten

RY Zheng, WR Jian, IJ Beyerlein, WZ Han - Nano Letters, 2021 - ACS Publications
… be atomic-scale defects, distinct from the usual relatively larger defect clusters, such as
nanoscale loops, voids… ” in the lattice in BCC metals after irradiation unlike in FCC or HCP metals. …

Atomic insights on interaction mechanism of dislocation with void/impurity/precipitates in bcc iron

MM Azeem, D Yun, M Zubair - International …, 2021 - asmedigitalcollection.asme.org
… the interaction of dislocation with voids is the reason for radiation hardening in alpha Fe. …
[22] YN Osetsky, DJ Bacon, Atomic-scale mechanisms of void hardening in bcc and fcc metals, …

Void-shape dependent hardening model in irradiated face-centered-cubic metals

Y Chen, Q Fang, Y Liu, B Liu, Y Liu, J Li… - Journal of Nuclear …, 2020 - Elsevier
steel with the numerical result calculated from the current model. The contribution of cubic
void on hardening is … The shape of the void is cube bounded by {100} planes in the BCC

Atom Probe Tomography and in-situ micro-compression coupling for understanding the mechanisms involved in hardening of neutron irradiated ferritic model alloys

M Vrellou - 2023 - theses.hal.science
… of the microstructure with irradiation hardening of the RPV steel, the underlying mechanisms
driving this process … Stacking faults are common in FCC metals but unstable in BCC metals. …

[HTML][HTML] A multiscale study on the microstructure and hardening models of the irradiation defects on reactor pressure vessel steels: Modelling and experiment

P Lin, J Nie, W Cui, L He, Y Lu, S Cui - Journal of Materials Research and …, 2024 - Elsevier
… from bcc Cu-rich … hardening stress of edge dislocations interacting with voids of different
sizes and temperatures, confirming the ability of the proposed model to predict void hardening. …

On the stability of nanovoids in fcc metals and the influence of hydrogen

ML Dos Reis, Y Ferro, A Oudriss, X Feaugas - Acta Materialia, 2024 - Elsevier
… In the present study, we employ atomic-scale simulations … tetrahedra (SFT) are not empty and
are composed of stacking … balance between softening and hardening of fcc metals could be …