| 铝双晶晶界滑动的实验研究 |
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| 引用本文： | 周自强,武保林.铝双晶晶界滑动的实验研究[J].北京航空航天大学学报,1990(2):1-7. |
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| 作者姓名： | 周自强 武保林 |
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| 作者单位： | 北京航空航天大学材料科学与工程系
(周自强，武保林)，北京航空航天大学材料科学与工程系(陈昌麒) |
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| 摘 要： | 制取了具有110]对称倾斜晶界的纯铝双晶体,获得了18种不同取向差的纯铝双晶试样。测定了晶界滑动速率与晶界取向差的关系。发现晶界滑动速率是晶界取向差(晶界结构)的敏感量;晶界滑动激活能随取向差变化而变化,并有极小值和极大值;晶界滑动速率随晶界切应力的增加呈线性上升;晶界滑动速率随温度的升高呈指数增加。
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| 关 键 词： | 晶界 双晶体 滑动 铝 实验 |
EXPERIMENTAL RESEARCH OF GRAIN BOUNDARY SLIDING IN ORIENTED ALUMINIUM BICRYSTALS |
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| Zhou Ziqiang Wu Baolin Chen Changqi.EXPERIMENTAL RESEARCH OF GRAIN BOUNDARY SLIDING IN ORIENTED ALUMINIUM BICRYSTALS[J].Journal of Beijing University of Aeronautics and Astronautics,1990(2):1-7. |
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| Authors: | Zhou Ziqiang Wu Baolin Chen Changqi |
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| Institution: | Department ot Materials Science and Engineering |
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| Abstract: | Aluminium bicrystal rods with 110] symmetric tilt boundaries were grown.The sliding velocity of grain boundary was measured on a set of aluminium bicrystal samples with 18 different misorienta-tions and was found to be misorientation(i.e.grain boundary structure) sensitive.The sliding velocity decreases as sliding proceeds.It increases exponentially with temperature and linearly with shearing stress at grain boundary.In addition,the activation energy of grain boundary sliding changes with mis-orientation,and maxima or minima appear at some boundaries. |
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| Keywords: | grain boundary sliding bicrystal symmetric tilt boundary grain boundary structure |
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