Results 31 to 40 of about 2,346 (291)
Geometrically Necessary Dislocations (GNDs) in iron processed by Equal Channel Angular Pressing (ECAP) [PDF]
, 2019 The calculation of Geometrically Necessary Dislocations (GNDs) in iron processed by ECAP has been carried out via Electron Back Scatter-Diffraction (EBSD) and Transmission Electron Microscopy (TEM).
Muñoz Bolaños, Jairo Alberto
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Materials & Design, 2021 Relationships between microstructures and hardening nature of laser powder bed fused (L-PBF) 316 L stainless steel have been studied. Using integrated experimental efforts and calculations, the evolution of microstructure entities such as dislocation ...
Luqing Cui +5 more
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Three dimensional structures of the geometrically necessary dislocations in matrix-inclusion systems under uniaxial tensile loading [PDF]
, 2004 Plastic slip deformation in matrix-inclusion systems, in which a cuboidal or spherical shaped inclusion is embedded in a softer matrix, are numerically analyzed by a finite element technique.
Ohashi, Tetsuya
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Strain gradients and geometrically necessary dislocations in deformed ice single crystals
, 2003 International audienceHard X-ray diffraction experiments were performed on ice single crystals deformed in torsion. This work shows the relationship between the density of geometrically necessary dislocations and strain gradients.
Duval, Paul +3 more
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Advanced Modeling and Simulation in Engineering Sciences, 2020 This paper presents an application to metal matrix composites (MMCs) of an enhanced elasto-viscoplastic Fast Fourier Transform (EVP-FFT) formulation coupled with a phenomenological continuum Mesoscale Field Dislocation Mechanics (MFDM) theory.
J. Genée +4 more
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Viewpoint: experimental recovery of geometrically necessary dislocation density in polycrystals
Scripta Materialia, 2003 Abstract Application of electron backscattering diffraction methods to recover estimates of the geometrically necessary dislocation density is described. The limitations of the method arising from the opacity of crystalline materials and the spatial and angular resolution limits are discussed.
B.S El-Dasher, B.L Adams, A.D Rollett
openaire +2 more sources
Archives of Mechanics, 2016 In our previous paper, a simple gradient-enhancement of the classical continuum theory of plasticity of single crystals deformed by multislip has been proposed for incorporating size effects. A single internal length scale has been derived as an explicit
S. Stupkiewicz, H. Petryk
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Microstructure development and hardening during high pressure torsion of commercially pure aluminium: strain reversal experiments and a dislocation based model [PDF]
, 2011 The effect of strain reversal on hardening due to high pressure torsion (HPT) was investigated using commercially pure aluminium. Hardening is lower for cyclic HPT (c-HPT) as compared to monotonic HPT (m-HPT).
Zhang, Jiuwen +5 more
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Back stress in strain hardening of carbon nanotube/aluminum composites
Materials Research Letters, 2018 As demonstrated by the loading–unloading tests and the modeling of the grain size effect and the composite effect, mainly owing to the back stress induced by CNTs, carbon nanotube/aluminum (CNT/Al) composites exhibit higher strain hardening capability ...
Run Xu +10 more
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Metals, 2020 The mechanisms responsible for the deformation of nanocrystalline materials are not well understood although many mechanisms have been proposed. This article studies the room-temperature stress-strain relations of bulk nanocrystalline silver deformed in ...
Baoru Sun, Tongde Shen
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