Effect of a first-order ridge on grain boundary motion in Zn
Effect of a first-order ridge on grain boundary motion in Zn
复制标题
一阶脊对 Zn 晶界运动的影响
DOI：
10.1016/j.actamat.2010.09.067
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发表时间：
2011
期刊：
影响因子：
9.4
通讯作者：
L. Shvindlerman
中科院分区：
文献类型：
--
作者：
V. Sursaeva;G. Gottstein;L. Shvindlerman
研究了具有一阶脊的晶界系统的迁移。阐述了具有小面和脊线的晶界半环的稳态运动理论。讨论了含有附加结构元素(一阶曲线段、小平面和脊线)的移动晶界的形状和性质。测量了一级“粗-粗”晶界脊的主要动力学参数(迁移率及其活化热)。结果表明，具有小面和脊线的边界半环的稳态运动符合最大自由能耗散率原理。
The migration of a grain boundary system with ridges of the first order is studied. A theory of steady-state motion of a grain boundary half-loop with facets and ridges is elaborated. The shape and properties of a moving grain boundary which contains additional structural elements (curved segments, facets and ridges of the first order) are addressed. The major kinetic parameters (mobility and its activation enthalpy) of a “rough-to-rough” grain boundary ridge of the first order were measured. It is shown that the steady-state motion of a boundary half-loop with facets and ridges complies with the principle of maximum rate of free energy dissipation.