| 双晶铝晶界弛豫的转变温度 |
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| 引用本文： | 段玉华,葛庭燧,张天宜.双晶铝晶界弛豫的转变温度[J].物理学报,1993,42(2):297-303. |
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| 作者姓名： | 段玉华 葛庭燧 张天宜 |
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| 作者单位： | (1)中国科学技术大学物理系,合肥230026; (2)中国科学院固体物理研究所内耗与固体缺陷开放研究实验室,合肥230031; (3)中国科学院金属研究所,沈阳110015 |
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| 摘 要： | 测量了夹角分别为60°和153.4°的110]对称倾侧铝双晶晶界的扭转滞弹性蠕变曲线,指出了晶界的弛豫强度在低于温度T0时变为零,此温度(T0)约等于该金属的熔点温度(Tm)的二分之一,这说明晶界的内部结构在这个温度的附近发生了显著的变化。
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| 关 键 词： | 铝 晶粒间界 弛豫 转变温度 |
| 收稿时间： | 1992-02-29 |
TRANSFORMATION TEMPERATURE OF GRAIN BOUNDARY RELAXATION IN ALUMINIUM BICRYSTALS |
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| DUAN YU-HUA,GE TING-SUI and ZHANG TIAN-YI.TRANSFORMATION TEMPERATURE OF GRAIN BOUNDARY RELAXATION IN ALUMINIUM BICRYSTALS[J].Acta Physica Sinica,1993,42(2):297-303. |
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| Authors: | DUAN YU-HUA GE TING-SUI and ZHANG TIAN-YI |
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| Abstract: | Anelastic creep curves of 110] symme rical tilt boundaries with mis-orientation angles 60°and 153.4°in aluminium bicrystals has been measured in torsion. It was found that the relaxation strength associated with the boundary becomes zero below a temperature T0 which has a value of about one half of the melting temperature Tm of bulk aluminium. This shows that a perceptible change of the internal structure of the grain boundary has taken place around this temperature. |
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