High Resolution Electron Microscopy of Radiation Defects in Ordered Alloys Induced by 1 MeV Electrons
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概要
- 論文の詳細を見る
Radiation defects induced by 1 MeV electrons in Zr_3Al, Au_3Cd and Au_3Mn have been investigated by high voltage high resolution electron microscopy. For the Ll_2 type intermetallic compound Zr_3Al, the changes in contrast of the superstructure images with electron irradiation suggest that the replacement disordering occurs in atom rows parallel to the incident beam. Neither dislocation loops nor voids are observed in the specimens damaged to 0.5 dpa. In the Au-Cd alloys, dislocation loops smaller than one nm in radius are identified at the electron irradiation of 2×10^<22> cm^<-2>. As for the Au-Mn alloys, dislocation loops are formed with preferential displacement of Mn atoms rather than Au atoms. The image contrast of irradiated Zr_3Al is discussed in comparison with the images computated by the multislice method.
- 東北大学の論文
- 1984-03-30
著者
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HIRABAYASHI Makoto
Institute for Materials Research, Tohoku University
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HIRABAYASHI Makoto
The Research Institute for Iron,Steel and Other Metals,Tohoku University
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Hiraga Kenji
The Research Institute For Iron Steel And Other Metals
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Hirabayashi Makoto
Institute For Materials Research Tohoku University
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Aoyagi E
Tohoku Univ. Sendai Jpn
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AOYAGI Eiji
High Voltage Electron Microscope Laboratory, Tohoku University
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Shindo Daisuke
The Research Institute for Iron, Steel and Other Metals
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Hirabayashi Makoto
The Research Institute For Iron Steel And Other Metals
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