Results 261 to 270 of about 32,459 (292)
Some of the next articles are maybe not open access.
Coupling between grain growth and grain rotation
Applied Physics Letters, 2007Grain boundary motion during grain growth or recrystallization is considered as a diffusion process of atomic movement across the boundary. It can be accompanied by subgrain rotation or nanograin rotation. However, grain boundary migration can be achieved also by dislocation motion or creep.
Rath, B., Winning, M., Li, J.
openaire +2 more sources
Grain Boundary Rotations in Solids
Physical Review Letters, 2012A new physical mechanism of plastic flow in solids is suggested and theoretically described. The mechanism represents stress-driven rotations of grain boundaries (GBs) in subsurface areas of solids. The stress and energy characteristics of the GB rotations are calculated.
S V, Bobylev, I A, Ovid'ko
openaire +2 more sources
Scripta Materialia, 1996
Abstract The effect of pre-strain on grain rotation and GBCD in polycrystalline Ni3Al was investigated and the following conclusions were reached. 1. (1) The frequency of coincidence boundaries does not increase by the grain rotation. 2. (2) Pre-strain enhances the grain rotation but does not affect the frequency of coincidence boundaries.
T. Shibayanagi, K. Sumimoto, Y. Umakoshi
openaire +1 more source
Abstract The effect of pre-strain on grain rotation and GBCD in polycrystalline Ni3Al was investigated and the following conclusions were reached. 1. (1) The frequency of coincidence boundaries does not increase by the grain rotation. 2. (2) Pre-strain enhances the grain rotation but does not affect the frequency of coincidence boundaries.
T. Shibayanagi, K. Sumimoto, Y. Umakoshi
openaire +1 more source
Scaling Behavior of Grain-Rotation-Induced Grain Growth
Physical Review Letters, 2002Recent investigations of grain growth in nanocrystalline materials have revealed a new growth mechanism: grain-rotation-induced grain coalescence. Based on a simple model employing a stochastic theory and using computer simulations, here we investigate the coarsening of a polycrystalline microstructure due solely to the grain-rotation coalescence ...
Moldovan, D. +3 more
openaire +3 more sources
Flow of magnetized grains in a rotating drum
Physical Review E, 2010We have experimentally investigated the influence of a magnetic interaction between the grains on the flow of a granular material in a rotating drum. The magnetic cohesion is induced by applying a homogeneous external magnetic field B oriented either parallel or perpendicular to the gravity g.
Lumay, Geoffroy, Vandewalle, Nicolas
openaire +2 more sources
Granular micromechanics based continuum model for grain rotations and grain rotation waves
Journal of the Mechanics and Physics of Solids, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Poorsolhjouy, Payam, Misra, Anil
openaire +2 more sources
The rotation of magnetic grains
Tectonophysics, 1993Abstract It has been questioned whether magnetic remanence rotates as a rigid marker or as a passive marker (with no material properties) during tectonic strain. The remanence of a rock is actually the sum of the moments of individual grains, so we must first understand their rotation.
openaire +1 more source
Direct observation of disconnection-mediated grain rotation
Scripta MaterialiaYingbin Chen +2 more
exaly +2 more sources
Viscous grain-boundary sliding with rotating particles or grains
Acta Materialia, 2009We evaluate the sliding rate and stress distribution on the boundary when the sliding of grain boundary containing particles is accommodated by grain-boundary diffusion, by taking the particle rotation and the intrinsic boundary viscosity into account. The particle rotation enhances the sliding rate, and can occur in the reverse direction with respect ...
Byung-Nam Kim +4 more
openaire +1 more source
An investigation of grain rotation and grain elongation in a superplastic alloy
Materials Science and Engineering: A, 1994Abstract Measurements were taken to determine the extent of grain rotation and grain elongation in the Pb-62%Sn eutectic alloy tested to a maximum elongation of 800% at a temperature of 423 K and at a strain rate near the center of the superplastic region II.
Afërdita Veveçka, Terence G. Langdon
openaire +1 more source