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Vol.42, No.3, 219 ~ 225, 2004
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| Title |
| Effect of Electron-Beam Irradiation Temperature on Irradiation Damage of High Mn-Cr Steel |
| 배동수 Bae Dong Su , 정호신 Jeong Ho Sin , 강창용 Kang Chang Yong , 남승훈 Nam Seung Hun , 이해무 Lee Hae Mu |
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| Abstract |
| The effect of electron-beam irradiation temperature on irradiation damage of 12%Cr-15%Mn austenitic steel for structural material of nuclear and/or fusion reactors from the point of view of the reduced activation was investigated by using the 1,250 keV HVEM and an energy dispersed X-ray analyzer(EDX) in a 200 keV FE-TEM with beam diameter of about 0.5 nm. Void formation was not observed in irradiated specimen. The dislocation loop growth was observed and the density and size of dislocation loop were increased with irradiation dose. Irradiation-induced segregations of Cr and Mn at grain boundary were also observed by electron-beam irradiation condition. The amount of Mn segregation was increased with irradiation temperature, however, segregation phenomenon was disappeared in the case of Cr. |
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| Key Words |
| Electron-beam irradiation, Irradiation damage, HVEM, High manganese austenitic steel, Irradiation-induced segregation |
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