硅对低活化马氏体钢电子辐照行为的影响

赵飞; 乔建生; 黄依娜; 万发荣; 许咏丽; 柴山环树; 大贯惚明

doi:10.7538/yzk.2008.42.01.0015

硅对低活化马氏体钢电子辐照行为的影响

1.
北京科技大学材料物理与化学系,北京 100083
2.
中国原子能科学研究院,北京 102413
3.
北海道大学工学部,札幌 060-8628,日本

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中图分类号: TL61.3
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出版历程
- 收稿日期: 2006-12-28
- 修回日期: 2007-03-11
- 刊出日期: 2008-01-19

Effect of Silicon on Electron Irradiation Behavior in China Low Activation Martensitic Steels

1.
Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
2.
China Institute of Atomic Energy, Beijing 102413, China
3.
Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan

摘要

摘要: 利用超高压透射电子显微镜研究了两种成分的低活化马氏体钢(CLAM钢)的辐照损伤行为。结果表明：电子辐照能在未添加硅的CLAM钢中产生辐照空洞；在450 ℃下辐照至14 dpa时，空洞数密度约为8.7×10²¹ m^－3，辐照肿胀率约为0.26％；在450 ℃下的辐照肿胀率明显比500 ℃下的高；当损伤率为2×10^－3 dpa/s时，添加合金元素硅能显著提高CLAM钢的抗辐照肿胀能力，未在添加硅的CLAM钢中实验观察到辐照空洞的形成。在450 ℃下进行辐照时，添加硅的CLAM钢出现明显的辐照共格析出现象。
- 核聚变 ,
- 低活化 ,
- 马氏体钢 ,
- 辐照损伤
Abstract: The irradiation damage behavior of two China low activation martensitic （CLAM） steels with different composition was studied by high voltage electron microscope. The results indicate that a lot of voids form in CLAM steel without silicon addition during electron irradiation. When irradiated to 14 dpa at 450 ℃, the number density of voids is about 8.7×10²¹ m^－3, and the irradiation swelling is approximately 0.26%. The irradiation swelling of CLAM steel without silicon addition at 450 ℃ is larger than that of at 500 ℃. When the irradiation damage rate is 2×10－3 dpa/s, no voids can be found in CLAM steel with silicon addition, so silicon is a good alloying element for irradiation swelling resistance in CLAM steels. When irradiated at 450 ℃, a kind of coherent precipitates form in silicon added CLAM steel.
- nuclear fusion ,
- low activation ,
- martensitic steel ,
- irradiation damage

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参考文献(12)

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硅对低活化马氏体钢电子辐照行为的影响

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出版历程

Effect of Silicon on Electron Irradiation Behavior in China Low Activation Martensitic Steels

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