| 氦对低活性Fe-Cr-Mn(W,V)合金辐照损伤影响 |
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| 引用本文： | 胡本芙,木下博嗣,高桥平七郎.氦对低活性Fe-Cr-Mn(W,V)合金辐照损伤影响[J].核科学与工程,2002,22(2):145-151. |
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| 作者姓名： | 胡本芙 木下博嗣 高桥平七郎 |
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| 作者单位： | 1. 北京科技大学,北京,100083
2. 北海道大学新能源工学研究中心,札幌060,日本 |
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| 摘 要： | 采用低能离子加速器和超高压电镜相连接复合辐照装置,研究注入He后经电子束辐照,观察低放射性Fe-Cr-Mn（W,V）合金的辐照损伤特征;研究He对辐照过程中产生二次缺陷,空洞肿胀,诱起晶界偏析的影响。实验结果证明He的存在,增加辐照初期位错密度,促进空洞核心形成及空洞肿胀增加,抑制晶界近旁溶质元素偏析。
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| 关 键 词： | Fe-Cr-Mn合金 氦损伤 电子束辐照 |
Effect of Helium on the Irradiation Damage of Fe-Cr-Mn(W, V) |
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| HU Benfu,Hiroshi KINOSHITA,Heishichiro TAKAHASHI.Effect of Helium on the Irradiation Damage of Fe-Cr-Mn(W, V)[J].Chinese Journal of Nuclear Science and Engineering,2002,22(2):145-151. |
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| Authors: | HU Benfu Hiroshi KINOSHITA Heishichiro TAKAHASHI |
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| Abstract: | Observation of irradiation damage characteristics induced by electron beam after injection helium in Fe-Cr-Mn(W, V)alloy was investigated by high voltage electron microscopy connected with a high energy ion accelerator. The effect of helium on the production of secondary defect, the void swelling and the irradiation induced grain boundary segregation has been studied. The experimental results show that the existence of helium enhanced the density of dislocation during initial stage of irradation, promoted formation of void nuclei and increase void swelling, suppressed segregation of solute atoms at grain boundaries. Fe-Cr-Mn(W, V) alloy has superior resistance to irradiation damage under helium atmosphere. |
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| Keywords: | Fe-Cr-Mn alloy helium damage electron irradiation |
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