| 双束强辐照对氧化物弥散强化铁素体型合金强化相稳定性影响 |
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| 引用本文： | 胡本芙,彭顺米,木下博嗣,高桥平七郎. 双束强辐照对氧化物弥散强化铁素体型合金强化相稳定性影响[J]. 核科学与工程, 2003, 23(4): 366-370 |
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| 作者姓名： | 胡本芙 彭顺米 木下博嗣 高桥平七郎 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 北海道大学新能源工学研究中心,日本,札幌,060 |
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| 摘 要： | 采用双束复合辐照装置,研究了He存在条件下,强辐照对长期时效后的ODS合金中强化相(Y2O3)的稳定性和辐照损伤特征的影响。实验结果表明:双束强辐照下,ODS合金中强化相不稳定,发生聚集长大并造成附近基体中Ti、Y浓度增高,导致空洞尺寸和空洞肿胀增加,并对这一结果从理论上进行解释。
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| 关 键 词： | 氧化物弥散强化铁索体钢 氦损伤 电子辐照 |
| 文章编号： | 0258-0918(2003)04-0366-05 |
| 修稿时间： | 2002-07-16 |
Effects of dual-beam irradiation on phase stability in oxide dispersion strengthened ferritic steel |
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| HU Ben-fu,PENG Shun-mi,Hiroshi KINOSHITA,Heishichiro TAKAHASHI. Effects of dual-beam irradiation on phase stability in oxide dispersion strengthened ferritic steel[J]. Chinese Journal of Nuclear Science and Engineering, 2003, 23(4): 366-370 |
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| Authors: | HU Ben-fu PENG Shun-mi Hiroshi KINOSHITA Heishichiro TAKAHASHI |
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| Abstract: | The stability and damage behavior of Y2O3 strength phase in the case of helium which exist in long aged oxide dispersion strengthened (ODS) ferritic steel has been investigated by high voltage electron microscopy connected with a high energy ion accelerator. The results indicate that the strength phase in ODS steel appears instability due to agglomeration of Y2O3, and the concentrations enhancement of Ti and Y in the matrix near the (Y, Ti)2O5 particles by dualbeam irradiation. As a result, the void sizes and the swelling of irradiated ODS steel have been also promoted. The experimental results have been explained qualiatively. |
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| Keywords: | oxides dispersion strengthened ferritic steel helium damage electron irradiation |
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