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Topological Approach to Abnormal Grain Growth in Three Dimensions

机译:三维异常生长的拓扑方法

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摘要

Theories of abnormal grain growth (AGG) in three dimensions usually approximate an abnormal grain by a sphere. The abnormal grain is then represented by its spherical equivalent grain radius. This study, by contrast, treats AGG in terms of concepts that include both the boundary curvature and the number of faces of the abnormal grain. We treat AGG for the case of pinned matrices, including the phenomena of initiation and growth kinetics. The influence of interfacial energy and mobility of the abnormal grain boundary are also discussed.
机译:三维异常晶粒生长(AGG)理论通常通过球体近似异常晶粒。然后,异常晶粒由其球形等效晶粒半径表示。相比之下,本研究从包括边界曲率和异常晶粒的面数在内的概念上对待AGG。我们将AGG用于固定矩阵的情况,包括引发和生长动力学现象。还讨论了界面能和异常晶界迁移率的影响。

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