摘要
通过离子束-电子束(H++e-)双束同时辐照,原位观察氧化物在辐照过程中的组织损伤变化,研究了(H++e-)双束辐照对乙二胺四乙酸(EDTA)络合溶胶-凝胶法制备的12Cr-ODS铁素体钢中氧化物(Y2O3)稳定性的影响。实验结果表明:电子辐照剂量达15 dpa后,再进行(H++e-)双束辐照15 dpa,在此条件下,Y2O3氧化物会发生尺寸减小或溶解,辐照诱发点缺陷和合金元素界面化学反应是导致氧化物不稳定性的重要原因。
Irradiation damage behavior was investigated by hydrogen ion-electron ion （I-I＋＋e-） dual-beam irradiation. The morphology change was observed in-site, and the effect of （H＋＋e-） dual-beam irradiation on the stability of oxide particle（Y2O3） in a new 12Cr-ODS ferrite steel, which was produced by using ethylene diamine tetraacetic acid （EDTA） complex method, was studied in this work. The results show that after electron ion irradiation with a dose of 15 dpa followed by an （H＋＋e-） dual-beam irradiation dose of 15 dpa, the size of Y2O3 particles decreased or dissolved in this particular condition, and the radiation-induced point defects and the chemical reaction around the interface are the main reasons for the instability of the oxides.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2013年第3期42-45,共4页
Nuclear Power Engineering
基金
国家973计划资助项目(2007CB209800)
关键词
辐照损伤
氧化物稳定性
氧化物弥散强化(ODS)
铁素体钢
Irradiation damage, Oxide particles stability, Oxide dispersion strengthened（ODS）, Ferritic steel
