Results 11 to 20 of about 8,939 (232)

The Internal Friction of Single Crystals, Bicrystals and Polycrystals of Pure Magnesium

open access: yesArchives of Metallurgy and Materials, 2015
The internal friction of magnesium single crystals, bicrystals and polycrystals has been studied between room temperature and 450°C. There is no internal friction peak in the single crystals, but a prominent relaxation peak appears at around 160°C in ...
Jiang W.B.   +3 more
doaj   +2 more sources

Geometry of polycrystals and microstructure

open access: yesMATEC Web of Conferences, 2015
We investigate the geometry of polycrystals, showing that for polycrystals formed of convex grains the interior grains are polyhedral, while for polycrystals with general grain geometry the set of triple points is small.
Ball John M., Carstensen Carsten
doaj   +3 more sources

Phase velocity statistics in random textured polycrystals

open access: yes
National audienceIn real finite-sized polycrystals, the background elastic properties are no longer deterministic. Consequently, the corresponding phase velocities and attenuation coefficients also become random.
Chevreuil, Mathilde   +3 more
core   +8 more sources

Elastic Deformation of Polycrystals [PDF]

open access: yesPhysical Review Letters, 2003
4 pages, 4 ps ...
Ahluwalia, Rajeev   +2 more
openaire   +3 more sources

Elastic wave propagation in polycrystals [PDF]

open access: yes, 2021
Scattering occurs as elastic waves propagate through a random polycrystalline medium, exhibiting scattering-induced attenuation and velocity dispersion.
Huang, Ming
core   +1 more source

Statistical properties of effective elastic moduli of random cubic polycrystals

open access: yesMechanics & Industry, 2023
The homogenized elastic properties of polycrystals depend on the grain morphology and crystallographic orientations. For simplification purposes, the orientations of the grains are usually considered three independent Euler angles.
Sheng Ningyue   +3 more
doaj   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Sophie Berveiller   +7 more
core   +1 more source

Energy-Minimizing Microstructures in Multiphase Elastic Solids [PDF]

open access: yes, 2004
This thesis concerns problems of microstructure and its macroscopic consequences in multiphase elastic solids, both single crystals and polycrystals. The elastic energy of a two-phase solid is a function of its microstructure.
Chenchiah, Isaac Vikram
core   +1 more source

Interplay of Martensitic Phase Transformation and Plastic Slip in Polycrystals [PDF]

open access: yes, 2013
Inspired by key experimental and analytical results regarding Shape Memory Alloys (SMAs), we propose a modelling framework to explore the interplay between martensitic phase transformations and plastic slip in polycrystalline materials, with an eye ...
Richards, A. W.   +3 more
core   +1 more source

Phase-field study of crystallographic texturing in piezoelectric polycrystals

open access: yesJournal of Advanced Dielectrics, 2022
Crystallographic texturing enables the design of piezoelectric polycrystals that outperform traditional random polycrystals by exhibiting outstanding piezoelectric properties.
Meixin Wang, Tian Xia, Liwei D. Geng
doaj   +1 more source

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