Results 21 to 30 of about 7,286,183 (302)
Dislocation density-based plasticity model from massive discrete dislocation dynamics database [PDF]
, 2020 We present a dislocation density-based strain hardening model for single crystal copper through a systematic coarse-graining analysis of more than 200 discrete dislocation dynamics (DDD) simulations of plastic deformation under uniaxial tension.
Sh. Akhondzadeh +3 more
semanticscholar +1 more source
Annihilation and sources in continuum dislocation dynamics
Materials 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
Progress in Natural Science: Materials International, 2020 This study focuses on a quantitative analysis of dislocation accumulation after cold plastic deformation and mechanical properties of FeNiCoCrMn and TiNbHfTaZr high entropy alloys (HEAs) which are single phase fcc and bcc solid solutions, respectively ...
P. Thirathipviwat +6 more
semanticscholar +1 more source
Mechanical Engineering Journal, 2018 In this study, we investigated the mechanism of the indentation size effect based on measurement of the geometrically necessary (GN) dislocation density. The GN dislocation density was measured around impressions by electron backscatter diffraction (EBSD)
Shota HASUNUMA +3 more
doaj +1 more source
Forces in Mechanics, 2022 The blanket module of nuclear fusion reactor is proposed to be made of reduced activation ferritic martensitic (RAFM) steel. Thus, in order to prevent the unprecedented failure, the creep response of RAFM steel must be studied meticulously.
Nilesh Kumar +3 more
doaj +1 more source
Multi-scale modelling of III-nitrides: from dislocations to the electronic structure [PDF]
, 2009 Gallium nitride and its alloys are direct band gap semiconductors with a wide variety of applications. Of particular importance are light emitting diodes and laser diodes. Due to the lack of suitable lattice-matched substrates, epitaxial layers contain a
core +2 more sources
Atomic scale models of dislocation cores in minerals: progress and prospects [PDF]
, 2010 Recent advances in computer simulation at the atomic scale have made it possible to probe the structure and behaviour of the cores of dislocations in minerals.
A. M. Walker +5 more
core +1 more source
Journal of Materials Research and Technology, 2023 We investigated the ferrite recrystallization behavior of pure iron with different dislocation characters. Two types of specimens with almost the same dislocation densities and different dislocation characters were prepared.
Kotaro Iguchi +3 more
doaj +1 more source
Dislocation density distribution at slip band-grain boundary intersections [PDF]
Acta Materialia, 2019 We study the mechanisms of slip transfer at a grain boundary, in titanium, using Differential Aperture X-ray Laue Micro-diffraction (DAXM). This 3D characterization tool enables measurement of the full (9-component) Nye lattice curvature tensor and ...
Yi Guo +5 more
semanticscholar +1 more source
Electronic Structure Calculations at Macroscopic Scales [PDF]
, 2007 Electronic structure calculations, especially those using density-functional theory have provided many insights into various materials properties in the recent decade.
Gavini, Vikram
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