Results 31 to 40 of about 58,697 (194)

Review and critical assessment of dislocation loop analyses on EUROFER 97

open access: yesNuclear Materials and Energy, 2018
The understanding of microstructural defects behavior after neutron irradiation is crucial for assessing the applicability of reduced activation ferritic/martensitic (RAFM) steel EUROFER 97 in future fusion reactors.
C. Dethloff, E. Gaganidze, J. Aktaa
doaj   +1 more source

Shear Modulus of an Elastic Solid under External Pressure as a function of Temperature: The case of Helium

open access: yes, 2011
The energy of a dislocation loop in a continuum elastic solid under pressure is considered within the framework of classical mechanics. For a circular loop, this is a function with a maximum at pressures that are well within reach of experimental ...
A. F. Andreev   +10 more
core   +2 more sources

Dislocation of a cerebral protection device component during carotid stenting: A case report of favorable outcome from conservative management after failure of retrieval [PDF]

open access: yes, 2018
tINTRODUCTION: Cerebral-protection devices (CPDs) are a well-established system for reduction ofembolic risk in carotid artery angioplasty and stenting (CAS).
Avruscio, Giampiero   +3 more
core   +2 more sources

Annihilation and sources in continuum dislocation dynamics

open access: yesMaterials Theory, 2018
Continuum dislocation dynamics (CDD) aims at representing the evolution of systems of curved and connected dislocation lines in terms of density-like field variables. Here we discuss how the processes of dislocation multiplication and annihilation can be
Mehran Monavari, Michael Zaiser
doaj   +1 more source

Ion Irradiation Defects and Hardening in FeCrAl Alloy

open access: yesMetals, 2022
The self-ion irradiation experiments of FeCrAl and Y−FeCrAl alloys are carried out at 330 °C to 1–10 displacements per atom (dpa). The formation of dislocation loops in these alloys is investigated by transmission electron microscopy (TEM) and nano ...
Fang Li   +8 more
doaj   +1 more source

Void-induced cross slip of screw dislocations in fcc copper

open access: yes, 2007
Pinning interaction between a screw dislocation and a void in fcc copper is investigated by means of molecular dynamics simulation. A screw dislocation bows out to undergo depinning on the original glide plane at low temperatures, where the behavior of ...
H. M. Zbib   +7 more
core   +1 more source

The Topology of Dislocations in Smectic Liquid Crystals [PDF]

open access: yes, 2017
The order parameter of the smectic liquid crystal phase is the same as that of a superfluid or superconductor, namely a complex scalar field. We show that the essential difference in boundary conditions between these systems leads to a markedly different
Kamien, Randall D., Mosna, Ricardo A.
core   +2 more sources

Investigation of Interactions between Dislocation and Dislocation Loops in Fe33Ni33Cr Alloy by Molecular Dynamics Simulation

open access: yesYuanzineng kexue jishu
The FeNiCr alloys hold application potential in advanced reactors, however, irradiation hardening severely impacts their safety during service. To further enhance the irradiation hardening theory of the FeNiCr alloys, the interaction mechanism between 1/
LONG Kaihong, WANG Dongjie, HUANG Chutian, JIA Lixia, HE Xinfu, DOU Yankun
doaj   +1 more source

Direct Observation of Cu Clusters and Dislocation Loops by Cs-Corrected STEM in Fe-0.6wt%Cu Alloy Irradiated in BR2

open access: yesMetals, 2022
The neutron irradiation of Fe-based fusion and fission reactor materials leads to an increase in ductile-to-brittle transition temperature with a decrease in upper shelf energy. It is well known that Cu content has a strong influence on the embrittlement
Hideo Watanabe   +3 more
doaj   +1 more source

The effects of different factors on obstacle strength of irradiation defects: An atomistic study

open access: yesNuclear Engineering and Technology
In this work we study the effects of different factors of dislocation loop on its obstacle strength when interacting with an edge dislocation. At first, the interaction model for dislocation and dislocation loop is established and the full and partial ...
Pan-dong Lin   +6 more
doaj   +1 more source

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