Abstract

The motion of two individual special [11\(\bar {2}\)0] tilt boundaries in the form of a half-loop with a facet is experimentally studied. The temperature dependence of the grain-boundary mobility is found to deviate from the Arrhenius law. This behavior is interpreted as the manifestation of the hysteresis of the grain-boundary mobility due to a faceting–defaceting transition. The faceting–defaceting transition temperature and the parameters of the grain-boundary mobility hysteresis are determined experimentally for the individual boundaries under study.

中文翻译：

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晶界相变过程中晶界运动的滞后现象

摘要

实验研究了两个特殊的[11 \（\ bar {2} \） 0]倾斜边界的运动，该倾斜边界呈带小平面的半环形式。发现晶界迁移率的温度依赖性偏离了阿伦尼乌斯定律。这种行为被解释为由于刻面-断面过渡而导致的晶界迁移的滞后现象。对于所研究的单个边界，通过实验确定刻面-脱乙酰过渡温度和晶界迁移率滞后的参数。