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 ?
The benefits of Stage I tempering now can be recognized as contributing to grain boundary cohesive strength as a result of the higher carbon content in solution.
According to them, the growth of a recrystallized grain into a stained matrix is forced by the difference in the stored energy of deformation that is present on the two sides of the migrating grain boundary. If the stored energy amount per unit volume of unrecrystallized material is continuously reduced during the course of recrystallization through competing recovery phenomena, after that the immediate rate of growth (boundary migration) should also decrease.
Liu, "Role of grain boundary and grain defects on ferromagnetism in Co:ZnO films," Applied Physics Letters, vol.
Matsumoto, "Tension-compression asymmetry in uniaxial deformation of a magnesium bicrystal with symmetric tilt grain boundary," Computational Materials Science, vol.
Creep deformation is caused by the same mechanism, such as grain boundary diffusion and/or grain boundary sliding.
In addition to the chemical composition and the corrosive environment, the deformation structure and the grain boundary state are also expected to play an important role in determining the corrosion resistance.
The vast majority of the austenite grains are distinct and the grain boundary can be obtained clearly (the black lines on behalf of the grain boundary).
This in principle should contribute to the formation of both radiation-induced phases and grain boundary segregation.
It should be noted that, in the EBIC images of grain boundary producing the line breakdown sites (Figure 3(a)), some dark points and lines can be also seen.
As a result, the grain boundary moves with a velocity that is proportional to its curvature.
An inverse relationship between film thickness and electrical resistivity has been commonly demonstrated by FS surface scattering and MS grain boundary scattering models.
[9, 10] reported that RE elements have strong grain refining effects on the as-cast alloy by retarding the grain boundary motion in the process of grain growth, which can optimize the hot workability of the copper alloy.