Results 251 to 260 of about 5,655,416 (266)
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Metallurgical and Materials Transactions A, 2018
Measurement of geometrically necessary dislocation (GND) density using electron backscatter diffraction (EBSD) has become rather common place in modern metallurgical research. The utility of this measure as an indicator of the expected flow behavior of the material is not obvious.
Amrita Kundu, David P. Field
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Measurement of geometrically necessary dislocation (GND) density using electron backscatter diffraction (EBSD) has become rather common place in modern metallurgical research. The utility of this measure as an indicator of the expected flow behavior of the material is not obvious.
Amrita Kundu, David P. Field
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2020
<p>The dynamics of several geophysical phenomena, such as post-seismic deformation and post-glacial isostatic readjustment, are inferred to be controlled by the transient rheology of olivine in Earth&#8217;s mantle. However, the physical mechanism(s) that underlie(s) this behavior remain(s) relatively unknown, and most ...
Christopher Thom +3 more
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<p>The dynamics of several geophysical phenomena, such as post-seismic deformation and post-glacial isostatic readjustment, are inferred to be controlled by the transient rheology of olivine in Earth&#8217;s mantle. However, the physical mechanism(s) that underlie(s) this behavior remain(s) relatively unknown, and most ...
Christopher Thom +3 more
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Materials Science Forum, 2011
The accumulation of dislocations around hard particles such as martensite in Dual Phase steel has a prominent influence on the mechanical properties of multiphase steels. The origin of these so-called Geometrically Necessary Dislocations (GNDs) is either due to the transformation strain, or to strain gradients that arise during deformation.
Moerman, J. +3 more
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The accumulation of dislocations around hard particles such as martensite in Dual Phase steel has a prominent influence on the mechanical properties of multiphase steels. The origin of these so-called Geometrically Necessary Dislocations (GNDs) is either due to the transformation strain, or to strain gradients that arise during deformation.
Moerman, J. +3 more
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Journal of Mechanical Science and Technology, 2013
A plastic strain gradient theory incorporating the geometrically necessary dislocation density based on the low order displacement finite element method is proposed for calculation of the hardness value by Berkovich indentation. The obtained analysis results by this work are found to be in good agreement with the experimental data.
Moon Shik Park, Yeong Sung Suh
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A plastic strain gradient theory incorporating the geometrically necessary dislocation density based on the low order displacement finite element method is proposed for calculation of the hardness value by Berkovich indentation. The obtained analysis results by this work are found to be in good agreement with the experimental data.
Moon Shik Park, Yeong Sung Suh
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Subgrain geometrically necessary dislocation density mapping in spalled Ta in three dimensions
Acta Materialia, 2023Wyatt A. Witzen +4 more
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Orientation dependent dislocation substructure evolves inside grains of polycrystalline copper during tensile deformation, together with the development of two-component texture. In order to study peculiarities of dislocation arrangement and quantify the geometrically necessary component of dislocation density at the scale of substructure, a thin foil ...
Zolotorevsky, Nikolai J. +3 more
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Zolotorevsky, Nikolai J. +3 more
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International Journal of Plasticity, 2008
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Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2022
Qinyang Zhao, Jinheng Luo
exaly
Qinyang Zhao, Jinheng Luo
exaly
1997
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997. ; Includes bibliographical references (leaves 158-164). ; by Hong Dai. ; Ph.D.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997. ; Includes bibliographical references (leaves 158-164). ; by Hong Dai. ; Ph.D.
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