Analytic model for the Orowan dislocation-precipitate bypass mechanism

BA Szajewski, JC Crone, J Knap - Materialia, 2020 - Elsevier
The interaction between glissile dislocations and precipitates within a continuum is
responsible for marked increases in material strength. Due to their desirable engineering …

[HTML][HTML] Defect accumulation and evolution during prolonged irradiation of Fe and FeCr alloys

F Granberg, J Byggmästar, K Nordlund - Journal of Nuclear Materials, 2020 - Elsevier
The understanding of materials' behaviour during continuous irradiation is of great interest
for utilizing materials in environments where harsh radiation is present, like nuclear power …

[HTML][HTML] Dislocation-oxide interaction in Y2O3 embedded Fe: A molecular dynamics simulation study

MM Azeem, Q Wang, Z Li, Y Zhang - Nuclear Engineering and Technology, 2020 - Elsevier
Oxide dispersed strengthened (ODS) steel is an important candidate for Gen-IV reactors.
Oxide embedded in Fe can help to trap irradiation defects and enhances the strength of …

A mechanism of carbon-cluster strengthening through atomic simulations

T Shimokawa, K Yasui, T Niiyama, K Kinoshita… - Materials …, 2020 - jstage.jst.go.jp
To investigate the reason why low-carbon steels with carbon-clusters shows the maximum
strength during low-temperature aging, interactions between an edge dislocation and …

An unified model for dislocations interacting with complex-shape voids in irradiated metals

Y Chen, Y Liu, Q Fang, J Li, Y Liu, PK Liaw - International Journal of …, 2020 - Elsevier
The irradiation damage-induced voids can hinder dislocation glide, and thereby change the
mechanical properties in the nuclear materials. However, the detailed process of the …

Molecular dynamics simulation of strengthening dependence on precipitate Cr composition in Fe-15at.% Cr alloy

SA Ibrahim, Q Wang, Y Zhang, M Ado, GD Chung… - Micron, 2020 - Elsevier
Molecular Dynamics simulation was employed to study precipitate composition dependence
on strengthening. Edge dislocation interaction with pure, 80at.%, and 60at.% Cr precipitates …

Atomistic modeling of radiation-induced defects in metals and their interactions with dislocations

P Grammatikopoulos - Frontiers of Nanoscience, 2020 - Elsevier
Assessment of candidate materials for fusion power plants provides one of the major
structural materials challenges of the next decades. Both plasma and the release of high …

On the Role of Grain Boundaries in Radiation Defect Production and Evolution in Nanocrystalline BCC Metals

Y Zhang - 2020 - search.proquest.com
Nanocrystalline materials with high grain boundary fractions have been proposed as
potential candidates for radiation-tolerant materials in nuclear reactors due to their high …

炭素クラスターの強化機構に関する原子論的研究

下川智嗣, 安井紀一朗, 新山友暁, 木下惠介… - 日本金属学会誌, 2020 - jstage.jst.go.jp
抄録 To investigate the reason why low-carbon steels with carbon-clusters shows the
maximum strength during low-temperature aging, interactions between an edge dislocation …