多束系统对12Cr-ODS钢辐照损伤协同效应的研究  

Synergy effect of radiation damage on 12Cr-ODS steel by multi-ion-beams

作　　者：张艳文[1] 刘士毅[1] 王绪[1] 王承[1] 赵子强[1] 钱晰[2] 李婷[2] 陆道纲[2] 

机构地区：[1]北京大学重离子物理研究所核物理与核技术国家重点实验室,北京100871 [2]华北电力大学核科学与工程学院,北京102206

出　　处：《核技术》2012年第7期503-506,共4页Nuclear Techniques

基　　金：国家自然科学基金(10675010);973项目(2010CB832902;2010CB832904)资助

摘　　要：室温下用不同种类的离子束对12Cr-ODS钢进行辐照。辐照前后12Cr-ODS钢的力学性能发生了明显变化,主要表现为辐照肿胀和辐照硬化,其中三束辐照下材料有最大的肿胀和最小的硬化。结合TEM照片对材料的辐照变化进行了分析。对材料进行拉曼光谱的测量,发现有碳析出现象,并且把碳峰的强度分布与辐照损伤分布进行了相互关联。本文为12Cr-ODS钢在实际反应堆中的应用积累了实验数据,明确了协同作用对核材料辐照损伤的影响。In this work, 12Cr-ODS steel samples were irradiated by different combinations of Si, He and H ion beams at room temperature. Mechanical property measurements of the irradiated samples showed that all the samples exhibited irradiation swelling and hardening, but the sample co-irradiated by three ion beams had the biggest swelling and smallest hardening. Combining on the TEM imaging, analyses of irradiation changes of 12Cr-ODS steel samples were carried out. Raman spectra of the irradiated samples revealed carbon precipitated inside the samples, and carbon peak distribution could reflect the radiation damage distribution. The results, which accumulated experimental data and clarified the radiation damage to nuclear materials by synergy effect, are of help for application of 12Cr-ODS steel in an advanced reactor.

关 键 词：12Cr-ODS钢 多束辐照 协同效应 辐照损伤 

分 类 号：TL341[核科学技术—核技术及应用] TG139.4[一般工业技术—材料科学与工程]