| HIGH RESOLUTION STUDY OF TWINS IN Al_(20)Cu_2Mn_3 PHASE |
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| 作者姓名： | LI Chunzhi WANG Shuncai JIN Yan Institute of Aeronautical Materials Beijing Laboratory of Atomic Imaging of Solids Institute of Metal Research Academia Sinica Shenyang China |
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| 作者单位： | LI Chunzhi WANG Shuncai JIN Yan Institute of Aeronautical Materials，Beijing，Laboratory of Atomic Imaging of Solids，Institute of Metal Research，Academia Sinica，Shenyang，China |
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| 摘 要： | The dispersoid phase Al_(20)Cu_2Mn_3 in a 2024 Al alloy is commonly composed of twins,An ob-servation of corresponding high resolution image shows that the twin boundary plane is a glideplane other than mirror one.Two neighbouring components of twins are not symmetry of re-flection or rotation,but of glide reflection.The“diamond”glide plane is(101)and the glidevector is(1/4)(-).Components of twins in the phase take shape of prism with thelongitudinal edge being parallel to010]and side faces being{101}and{100}.
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| 收稿时间： | 1992-08-25 |
| 修稿时间： | 1992-08-25 |
HIGH RESOLUTION STUDY OF TWINS IN Al_(20)Cu_2Mn_3 PHASE |
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| LI Chunzhi WANG Shuncai JIN Yan Institute of Aeronautical Materials,Beijing,Laboratory of Atomic Imaging of Solids,Institute of Metal Research,Academia Sinica,Shenyang,China.HIGH RESOLUTION STUDY OF TWINS IN Al_(20)Cu_2Mn_3 PHASE[J].Acta Metallurgica Sinica(English Letters),1992,5(4):227-230. |
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| Authors: | LI Chunzhi WANG Shuncai JIN Yan Institute of Aeronautical Materials Beijing Laboratory of Atomic Imaging of Solids |
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| Affiliation: | LI Chunzhi WANG Shuncai JIN Yan Institute of Aeronautical Materials,Beijing,Laboratory of Atomic Imaging of Solids,Institute of Metal Research,Academia Sinica,Shenyang,China |
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| Abstract: | The dispersoid phase Al_(20)Cu_2Mn_3 in a 2024 Al alloy is commonly composed of twins,An ob- servation of corresponding high resolution image shows that the twin boundary plane is a glide plane other than mirror one.Two neighbouring components of twins are not symmetry of re- flection or rotation,but of glide reflection.The“diamond”glide plane is(101)and the glide vector is(1/4)(-).Components of twins in the phase take shape of prism with the longitudinal edge being parallel to010]and side faces being{101}and{100}. |
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| Keywords: | twin glide reflection high resolution image Al-Cu-Mn alloy |
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