Research and development of highly equipped experimental technique for materials in light water reactors

轻水堆材料高装备实验技术研发

• 批准号: 07558070
• 负责人: KINOSHITA Chiken
• 金额: $ 7.04万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07558070/
• 关键词: radiation damage; mechanical property; handness; zirconium alloy; dislocation loop; oxidetion; electrical conductivity; ceramics; oxide; TEM; nanoindentation; phase transformation; 原子力材料; 照射損傷; 自己修復条件; 超高圧電子顕微鏡; 電子照射; イオン照射; 中性子照射; 超微小硬

The research project of 'Research and development of highly equipped experimental technique for materials in light water reactors' started in 1995 and have continued to 1997 for three years. This report is the summary of the research project which includes the following for results.(1) Microstructural evolution under electron and ion irradiation in zirconium alloys and their oxide films : we have determined the migration energies of interstitials and vacancies to be 0.1-0.22 and 1.0-1.1eV,respectively.(2) oxidation mechanism of zirconium alloys by using 'in situ' measurements of electrical conductivity under 1 MeV electron irradiation : the rate controlling process of electrical conductivity in zirconium oxide was electron migration. This indicate that the rate controlling process of oxidation is the migration of oxygen ions.(3) development of ultra-microhardness and Vickers hardness technique for evaluating stress-strain properties of metals : From the measurements of the load-dependence of hardness and plastically deformed area, we have proposed a new method for evaluation stress-strain properties, that is, the yield stress and strain hardening exponent of metals by using ultra-microhardness and Vickers hardness technique.(4) Radiation hardening of ion-irradiated metals and oxide ceramics by using the ultra-microhardness technique : high energy ion irradiated copper was subjected to evaluate stress-strain properties by using the proposed ultra-microhardness technique.

“轻水堆材料高装备实验技术研究与开发”研究项目于1995年启动，并持续到1997年。本报告是研究项目的总结，包括以下结果。(1)锆合金及其氧化膜在电子和离子辐照下的微结构演变：我们测定了杂质和空位的迁移能分别为0.1-0.22和1.0- 1.1eV。(2)在1 MeV电子辐照下，通过电导率的“原位”测量，研究了锆合金的氧化机理：锆氧化物电导率的速率控制过程是电子迁移。这表明氧化的速率控制过程是氧离子的迁移。(3)超显微硬度和维氏硬度技术在金属应力-应变性能评价中的应用：从硬度与塑性变形面积的载荷关系的测量出发，提出了一种新的评价金属应力-应变性能的方法，即用超显微硬度和维氏硬度技术评价金属的屈服应力和应变硬化指数。(4)利用超显微硬度技术对离子辐照金属和氧化物陶瓷进行辐照硬化：利用所提出的超显微硬度技术对高能离子辐照铜进行应力-应变性能评价。

项目成果

K.Noda, T.Takazawa, Y.Oyama, H.Maekawa, J.Kaneda and C.Kinoshita: "First in situ measurement of electrical resistivity of ceramic insulator duringirradiation with neutrons of energy 14 MeV" Fusion Engineering and Design. 29. 448-454 (1995)

K.Noda、T.Takazawa、Y.Oyama、H.Maekawa、J.Kaneda 和 C.Kinoshita：“首次在能量 14 MeV 中子辐照过程中原位测量陶瓷绝缘体的电阻率”融合工程与设计。

K.Yasuda, C.Kinoshita, M.Kutuwada and H.Hirai: "Nucleation and growth process of defect clusters in copper during helium ion irradiation" J.Nucl.Mater. 233-237. 1051-1056 (1996)

K.Yasuda、C.Kinoshita、M.Kutuwada 和 H.Hirai：“氦离子辐照期间铜中缺陷簇的成核和生长过程”J.Nucl.Mater。

椎山 謙一: "Measurements of Electrical Conductivity of Ceramics under Electron Irradiation in a High Voltage Electron Microscope" Journal of Nuclear Materials. (印刷中). (1996)

Kenichi Shiiyama：“在高压电子显微镜下测量陶瓷的电导率”核材料杂志（1996 年）。

K.Yasuda,K.Kakiuchi,et al.: "Nanoindentation technique for evaluating radiation hardening of ion-irradiated copper" IEA/JUPITER Symposium on small specimen technologies for fusion research. (印刷中). (1997)

K. Yasuda、K. Kakiuchi 等人：“用于评估离子辐照铜的辐射硬化的纳米压痕技术”关于用于聚变研究的小样本技术的 IEA/JUPITER 研讨会（1997 年）。

H.Nakamichi, C.Kinoshita and M.Hara: "Desorption process of deuterium from zircaloys and their oxides" Technol.reports of Kyushu University. 70. 569-576 (1997)

H.Nakamichi、C.Kinoshita 和 M.Hara：“锆合金及其氧化物中氘的解吸过程”九州大学的 Technol.reports。