Vacancy like defects and hardening of tungsten under irradiation with He ions at 800 degrees C
文献类型：期刊论文
| ; | |
| 作者 | Cui, MH; Shen, TL; Zhu, HP; Wang, J ; Cao, XZ; Zhang, P; Pang, LL; Yao, CF; Wei, KF; Zhu, YB
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| 刊名 | FUSION ENGINEERING AND DESIGN
 ; FUSION ENGINEERING AND DESIGN
|
| 出版日期 | 2017 ; 2017 |
| 卷号 | 121页码:313-318 |
| 关键词 | Vacancy like defect Vacancy like defect Hardening Tungsten He irradiation HenVm complex Hardening Tungsten He irradiation HenVm complex |
| ISSN号 | 0920-3796 ; 0920-3796 |
| DOI | 10.1016/j.fusengdes.2017.05.043 ; 10.1016/j.fusengdes.2017.05.043 |
| 文献子类 | Article ; Article |
| 英文摘要 | The irradiation induced hardening and vacancy like defects are investigated as a function of irradiation fluences with 200 keV He ion implantation at 800 degrees C in this work. Nano-indentation tests show the irradiation induces hardening and the hardness values increase with increasing irradiation fluences. Doppler broadening spectroscopy analyses of slow positron annihilation find that a large amount of vacancy like defects are produced under irradiation. When the He/dpa ratio is less than about 2.2% He/dpa, the vacancy like defects include mainly empty vacancy clusters and loops, and HenVm complexes. When the He/dpa ratio is more than about 2.2% He/dpa, the vacancy like defects become mainly HenVm complexes with increasing irradiation fluences. Meanwhile, these complexes increase in size and He/V ratio while the irradiation fluences increase. Based on the Orowan hardening mechanism, we discuss the relationship between irradiation induced hardening and defects under indentation, especially the contribution of HenVm complexes to the hardening. (C) 2017 Elsevier B.V. All rights reserved.; The irradiation induced hardening and vacancy like defects are investigated as a function of irradiation fluences with 200 keV He ion implantation at 800 degrees C in this work. Nano-indentation tests show the irradiation induces hardening and the hardness values increase with increasing irradiation fluences. Doppler broadening spectroscopy analyses of slow positron annihilation find that a large amount of vacancy like defects are produced under irradiation. When the He/dpa ratio is less than about 2.2% He/dpa, the vacancy like defects include mainly empty vacancy clusters and loops, and HenVm complexes. When the He/dpa ratio is more than about 2.2% He/dpa, the vacancy like defects become mainly HenVm complexes with increasing irradiation fluences. Meanwhile, these complexes increase in size and He/V ratio while the irradiation fluences increase. Based on the Orowan hardening mechanism, we discuss the relationship between irradiation induced hardening and defects under indentation, especially the contribution of HenVm complexes to the hardening. (C) 2017 Elsevier B.V. All rights reserved. |
| 电子版国际标准刊号 | 1873-7196 ; 1873-7196 |
| WOS关键词 | HELIUM-IMPLANTED TUNGSTEN ; HELIUM-IMPLANTED TUNGSTEN ; LOW-ENERGY ; POSITRON-ANNIHILATION ; BEAM IRRADIATION ; NANO-INDENTATION ; RADIATION-DAMAGE ; IN-SITU ; SIMULATION ; HARDNESS ; EVOLUTION ; LOW-ENERGY ; POSITRON-ANNIHILATION ; BEAM IRRADIATION ; NANO-INDENTATION ; RADIATION-DAMAGE ; IN-SITU ; SIMULATION ; HARDNESS ; EVOLUTION |
| WOS研究方向 | Nuclear Science & Technology ; Nuclear Science & Technology |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000411550100043 ; WOS:000411550100043 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285279]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_粒子天体物理中心 高能物理研究所_多学科研究中心 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cui, MH,Shen, TL,Zhu, HP,et al. Vacancy like defects and hardening of tungsten under irradiation with He ions at 800 degrees C, Vacancy like defects and hardening of tungsten under irradiation with He ions at 800 degrees C[J]. FUSION ENGINEERING AND DESIGN, FUSION ENGINEERING AND DESIGN,2017, 2017,121, 121:313-318, 313-318. |
| APA | Cui, MH.,Shen, TL.,Zhu, HP.,Wang, J.,Cao, XZ.,...&张鹏.(2017).Vacancy like defects and hardening of tungsten under irradiation with He ions at 800 degrees C.FUSION ENGINEERING AND DESIGN,121,313-318. |
| MLA | Cui, MH,et al."Vacancy like defects and hardening of tungsten under irradiation with He ions at 800 degrees C".FUSION ENGINEERING AND DESIGN 121(2017):313-318. |
入库方式： OAI收割
来源：高能物理研究所
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