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3MeV金离子辐照Ni60Nb40非晶合金及Hastelloy-N合金的辐照损伤研究
Alternative TitleInvestigations on Irradiation Effects of Ni60Nb40 Amorphous Alloy and Hastelloy-N Alloy by 3 MeV Au Ion
刘士毅; 徐光跃; 张艳文; 王绪; 唐美雄; 赵子强; 魏炳忱
Source Publication北京大学学报(自然科学版)=Acta Scientiarum uaturalium Universitatis Pekinensis
2015-08-05
Volume51Issue:5Pages:783-790
ISSN0479-8023
Abstract使用3 Me V金离子对Ni60Nb40非晶合金和Hastelloy-N合金进行剂量为2.3×1015 cm–2和5×1016 cm–2的辐照实验。X射线衍射(XRD)数据表明,Ni60Nb40非晶合金的非晶态在室温辐照下非常稳定,而HastelloyN合金在辐照后有明显的微观应变增加。同时纳米压痕分析表明,Ni60Nb40非晶合金的辐照软化和HastelloyN合金的辐照硬化主要由原子移位损伤造成。使用原子力显微镜(AFM)测量半遮挡的辐照方法制造的肿胀台阶,发现两种材料的辐照肿胀效应相差不大。扫描电子显微镜(SEM)观察发现,室温条件下3 Me V金离子导致Ni60Nb40非晶合金表面发生...
Other Abstract
3 MeV Au ions were used to irradiate Hastelloy-N and Ni60Nb40 amorphous alloy, and total doses were 2.3×1015 cm–2 and 5×1016 cm–2. X-ray Diffraction results presented that Ni60Nb40 amorphous alloy showed good stability in crystal state, but Hastelloy-N had apparent strain increment after irradiation. Nano-Indenter test found that softening of Ni60Nb40 amorphous alloy and hardening of Hastelloy-N were mainly caused by atom displacement damage. Through measuring step heigh created by half-shielding irradiation with an Atomic Force Micoscope, the authors found that the irradiation swelling of both materials were approximate. Scan Electron Micoscope observation showed that the critical dose of Ni60Nb40 amorphous alloy surface viscous flow induced by 3 MeV Au ions was larger than 2.3×1015 cm–2. The surface viscous flow critical dose was not uniform, which may be caused by surface stress induced by mechanical polishing. Ni60Nb40 amorphous alloy should be potential to be protective coating against corrosion and irradiation damage, for its self-healing of surface defects through viscous flow mechanism. 
 
KeywordHastelloy-n合金 自修复 镍基非晶合金 Hastelloy-n Alloy 熔盐反应堆 Ni-based Amorphous Alloy 辐照损伤 Molten Salt Reactor 黏性流动 Irradiation Damage Viscous Flow Self-healing
DOI10.13209/j.0479-8023.2015.056
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金(91226202)
DepartmentNML空间材料物理力学
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/56632
Collection国家微重力实验室
Recommended Citation
GB/T 7714
刘士毅,徐光跃,张艳文,等. 3MeV金离子辐照Ni60Nb40非晶合金及Hastelloy-N合金的辐照损伤研究[J]. 北京大学学报(自然科学版)=Acta Scientiarum uaturalium Universitatis Pekinensis,2015,51(5):783-790.
APA 刘士毅.,徐光跃.,张艳文.,王绪.,唐美雄.,...&魏炳忱.(2015).3MeV金离子辐照Ni60Nb40非晶合金及Hastelloy-N合金的辐照损伤研究.北京大学学报(自然科学版)=Acta Scientiarum uaturalium Universitatis Pekinensis,51(5),783-790.
MLA 刘士毅,et al."3MeV金离子辐照Ni60Nb40非晶合金及Hastelloy-N合金的辐照损伤研究".北京大学学报(自然科学版)=Acta Scientiarum uaturalium Universitatis Pekinensis 51.5(2015):783-790.
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