| Ni_3Al单晶体和Ni_3Al-Mo复合材料的拉伸形变组织 |
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| 引用本文： | 王成国,菊池潮美. Ni_3Al单晶体和Ni_3Al-Mo复合材料的拉伸形变组织[J]. 山东大学学报(工学版), 1992, 0(1) |
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| 作者姓名： | 王成国 菊池潮美 |
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| 作者单位： | 山东工业大学设备处，日本京都大学 |
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| 摘 要： | 拉伸形变过程中,Ni_3Al单晶体的滑移线呈直线,TEM组织显示大量的线型位错。Ni_3Al-Mo复合材料的形变组织显示曲折型滑移线和纤维多重断裂特征。低温形变的Ni_3Al基体和Mo纤维中都存在高密度位错;高温形变时,动态回复加快,位错密度降低。
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| 关 键 词： | 单晶 复合材料 变形观察 显微结构 滑移 位错 |
TENSILE FORMING STRUCTURE OF SINGLE CRYSTAL Ni_3Al AND COMPOSITE Ni_3Al-Mo |
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| Wang Chengguo et al. TENSILE FORMING STRUCTURE OF SINGLE CRYSTAL Ni_3Al AND COMPOSITE Ni_3Al-Mo[J]. Journal of Shandong University of Technology, 1992, 0(1) |
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| Authors: | Wang Chengguo et al |
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| Affiliation: | Dept. of Equip. Manage. |
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| Abstract: | Structure of the materials was observed by optimal microscope and transimisson electronic microscope, During tensile deformation, the slip trace in Ni_3Al single crystal is straight and a number of linear dislocation exists. Deformed microstructure of Ni_3Al-Mo composite presents winded slip trace and multiple broken fibers. In both Ni_3Al matrix and Mo fiber, the higher dislocation density existed in low temperature defomation; but in high temperature deformation the dislocation density decreased for the movingrecovery was quickened. |
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| Keywords: | Single crystals Composite materials Deformation observation Microstructure Slip Dislocation |
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