| 高温变形时Al67Mn8Ti25的动态回复和动态再结晶 |
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| 引用本文： | 孙 坚, 胡赓祥.高温变形时Al67Mn8Ti25的动态回复和动态再结晶[J].上海交通大学学报,1999(2). |
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| 作者姓名： | 孙 坚 胡赓祥 |
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| 作者单位： | ：孙坚，胡赓祥，（上海交通大学材料科学与工程学院）;赵晓宁，洪建明（南京大学固体微结构物理实验室） |
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| 摘 要： | The deformation
microstructure of Ll2-structure Al67Mn8Ti25
compound after tension at high temperature was investigated by TEM. The results show that
dynamic recovery occurs and there exist a high density of dislocations, dislocation walls
and unstable networks within the grains after deformation at 1 173 K and a strain rate of
8.35×10-5 s-1. At 1 173 K and a strain rate of 3.34×10-5s-1,
dynamic recrystallization took place and the deformation microstructures were fine
recrystallized grains with stable sub-boundaries in the specimen. Owing to difficulties in
the dislocation motion and the process concerned with atom diffusion, the dynamic recovery
and dynamic recrystallization occur only at rather higher temperature and lower strain
rates, and only under this condition can the appreciate tensile ductility be obtained for
this compound.
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| 修稿时间： | 1997-09-26 |
Dynamic Recovery
and Dynamic Recrystallization of
Al67Mn8Ti25 Compound during High Temperature Deformation |
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| Sun Jian,.Dynamic Recovery
and Dynamic Recrystallization of
Al67Mn8Ti25 Compound during High Temperature Deformation[J].Journal of Shanghai Jiaotong University,1999(2). |
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| Authors: | Sun Jian |
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| Abstract: | |
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