Nanostructure Variations and Their Effects on Mechanical Strength of Ni-17Mo-7Cr Alloy under Xenon Ion Irradiation
文献类型：期刊论文
| 作者 | Huang, HF ; Li, DH ; Li, JJ ; Liu, RD ; Lei, GH ; He, SX ; Huang, Q ; Yan, L |
| 刊名 | MATERIALS TRANSACTIONS
 |
| 出版日期 | 2014 |
| 卷号 | 55期号:8页码:1243—1247 |
| ISSN号 | 1345-9678 |
| 关键词 | ELASTIC-MODULUS INDENTATION HARDNESS STEELS TEMPERATURE REACTORS DAMAGE LOAD |
| 通讯作者 | yanlong@sinap.ac.cn |
| 英文摘要 | A nickel-base high-temperature alloy (Ni-17Mo-7Cr) has been characterized by nanoindentation and transmission electron microscopy to determine the changes of nanoindentation hardness and microstructural evolution under ion irradiation. Ion irradiation experiments for bulk and thin-foil specimens of Ni-17Mo-7Cr alloy were carried out at room temperature, up to 6.6 dpa, by 7 MeV Xe26+ and 1 MeV Xe20+ ions, respectively. The continuous stiffness measurement (CSM) with a diamond Berkovich indent was used to measure the depth profile of hardness. Nanoindentation results for bulk specimens showed an evident ion irradiation induced hardening phenomenon, and the nanoindentation hardness increases with increasing ion dose. High number density of nano-scale black spots and linear-like defects were observed in thin-foil specimens irradiated at 0.33 and 6.6 dpa, respectively. High-resolution transmission electron microscopy images revealed that the black spots were nano-scale solute clusters and dislocation loops, while the linear-like defects were found to be Ni, Mo and Cr-enrichment regions by using the high-angle annular dark field-scanning transmission electron microscope. The ion irradiation induced defects can be responsible for the hardening of Ni-17Mo-7Cr alloys. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000343333500028 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14265]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Huang, HF,Li, DH,Li, JJ,et al. Nanostructure Variations and Their Effects on Mechanical Strength of Ni-17Mo-7Cr Alloy under Xenon Ion Irradiation[J]. MATERIALS TRANSACTIONS,2014,55(8):1243—1247. |
| APA | Huang, HF.,Li, DH.,Li, JJ.,Liu, RD.,Lei, GH.,...&Yan, L.(2014).Nanostructure Variations and Their Effects on Mechanical Strength of Ni-17Mo-7Cr Alloy under Xenon Ion Irradiation.MATERIALS TRANSACTIONS,55(8),1243—1247. |
| MLA | Huang, HF,et al."Nanostructure Variations and Their Effects on Mechanical Strength of Ni-17Mo-7Cr Alloy under Xenon Ion Irradiation".MATERIALS TRANSACTIONS 55.8(2014):1243—1247. |
入库方式： OAI收割
来源：上海应用物理研究所
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