| Ar~+辐照Hastelloy C276显微结构演化多尺度模拟研究及实验验证 |
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| 引用本文： | 贺新福,郭立平,吴石,杨鹏,杨文.Ar~+辐照Hastelloy C276显微结构演化多尺度模拟研究及实验验证[J].原子能科学技术,2012,46(2):129-132. |
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| 作者姓名： | 贺新福 郭立平 吴石 杨鹏 杨文 |
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| 作者单位： | 1.中国原子能科学研究院，北京102413；2.武汉大学 ;物理系，湖北 ;武汉430072 |
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| 基金项目： | 国家自然科学基金资助项目(10975194);973计划资助项目(2011CB610503) |
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| 摘 要： | 采用分子动力学结合团簇动力学研究了Hastelloy C276Ni基合金在Ar+辐照(室温,约10dpa)下的显微结构演化机理,开发了多尺度模拟程序Radieff,利用Radieff模拟了在Ar+辐照下C276中间隙位错环和孔洞的形核、长大过程。在武汉大学串列加速器-离子注入机-透射电镜一体化联机装置上开展了115keV Ar+辐照C276验证实验,采用一体化联机透射电镜观察了辐照缺陷尺寸及形貌。不同辐照剂量下位错环尺寸模拟结果与实验结果吻合很好。
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| 关 键 词： | 多尺度模拟 串列加速器-离子注入机-透射电镜一体化联机装置 显微结构 |
Multiscale Modeling and Experiment Validation of Microstructure Evolution Induced by Ar~+ Irradiation in Hastelloy C276 |
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| HE Xin-fu
,
GUO Li-ping
,
WU Shi
,
YANG Peng
,
YANG Wen.Multiscale Modeling and Experiment Validation of Microstructure Evolution Induced by Ar~+ Irradiation in Hastelloy C276[J].Atomic Energy Science and Technology,2012,46(2):129-132. |
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| Authors: | HE Xin-fu GUO Li-ping WU Shi YANG Peng YANG Wen |
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| Affiliation: | 1.China Institute of Atomic Energy, Beijing 102413, China;2.Department of Physics, Wuhan University, Wuhan 430072, China |
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| Abstract: | The microstructure evolution induced by Ar+ irradiation(room temperature,about 10 dpa) in nickel based alloy Hastelloy C276 was studied using molecular dynamics and cluster dynamics,and a multiscale modeling code Radieff was constructed based on rate theory.The nucleation and growth of interstitial dislocation loops and void were studied by Radieff code.C276 was irradiated by 115 keV Ar+ at room temperature as validation experiment using transmission electron microscope(TEM)-implanter/accelerator interface facility at Wuhan University,and the microstructure evolution was observed by TEM.The size of dislocation loops simulated by Radieff is in good agreement with experiment. |
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| Keywords: | multiscale modeling TEM-implanter/accelerator interface facility microstructure |
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