Grain

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Related to Grain boundary: Grain growth, Twin boundary

Grain

A unit of weight equivalent to one 7,000th of one pound.
References in periodicals archive ?
Among these are the motion of grain boundary systems with triple and quadruple junctions; the effect of grain boundary faceting on grain boundary motion; grain growth in systems of two and three dimensions; and the influence of grain boundary junctions on grain growth kinetics, on the evolution of grain microstructure, and on the stability of fine grained and nanocrystalline materials.
Further, the estimate of the length intensity of grain boundary junctions L, (the mean length of triple grain or subgrain junction per unit volume) was estimated as [[[L.
5 hr for this test in order to clearly define any grain boundary precipitates.
Among their topics are experimental investigations of grain boundary ensembles in polycrystals, percolation mechanisms of deformation processes in ultrafine-grained polycrystals, grain boundary processes in ultrafine-grained nickel and nano-nickel, and deriving constitutive equations in multicomponent loading conditions.
Unfortunately, grain boundary formation in most technically useful alloys has eluded efforts to observe it for a century.
Papers from the conference, 104 in all, are presented in 13 sections, covering industrial applications, processing methods, material processing for superplasticity, product design and numerical simulation, mechanisms of grain boundary sliding and failure, high strain rate and low temperature superplasticity, microstructural control and evolution during superplastic deformation, and superplasticity in metals, light metals, intermetallics, ceramics, nanostructured materials, and bulk metallic classes.
The Si forms a protective oxide layer, reducing grain boundary oxidation, and Mo increases both high-temperature yield properties and creep resistance of the material.
Grain boundary diffusion, stresses and segregation; proceedings.
The papers are grouped into 7 major topics that include grain growth, grain boundary and interface structure, microstructure development, computer simulation and modeling, recrystallization and grain growth in ceramics and thin films, and nanocrystallization and grain growth.
The higher nodule count minimizes grain boundary segregation of carbide-forming elements and reduces carbon flotation.