Irradiation Effects of Fusion Reactor Matenals under Dynamic and Variable/Complex Conditions

动态和多变/复杂条件下聚变反应堆材料的辐照效应

• 批准号: 06303016
• 负责人: ABE Katsunori
• 金额: $ 3.14万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06303016/
• 关键词: Irradiation Effects; Low Activation Materials; Ferritic Steels; Vanadium Alloys; Ceramics; Effects of Variable; Complex Condition; Effects of Dynamic Conditions; Modeling; 核融合炉材料; 照射損傷; 中性子照射

The influence of varying irradiation conditions like temperature cycle on the property change will be serious problem for the components under the fusion operating conditions, where the controlled and accidental variation of power generation will take place. Degradation of material performance by these irradiation effects have been recognized as important subjects of irradiation effects on materials but the detail of phenomena have not been clarified yet because of their difficulties of irradiation experiments. Recently prediction of these types of degradation during neutron irradiation conditions are recognized as important design parameter of fusion reactors.The objective of this work is characterization of damage process during reactor operation for structural and functional materials of fusion reactor. Dynamic phenomenon only in irradiation and the material property changes in the irradiation conditions, which are varied corresponding to the steady and unsteady operation of the rea … More ctor and complex condition including the nuclear transmutation are studied. In order to study the dynamic effect in addition to the cumulative effects, the experimental test matrix becomes huge in parameters. Therefore, mechanistic understanding and theoretical predictions are required to obtain key information through well-planned irradiation experiment with limited amount of irradiation volume.In concretely, the following seven tasks were set up to organize irradiation experiment effectively. Test matrix focuses on low activation structural materials and functional materials including insulating ceramics and refractory alloys. (1) Irradiation creep measurement and mechanical property examination of low activation ferritic steels. (2) Irradiation effects on mechanical properties and micro structural evolution of vanadium alloys under combined/complex conditions, (3) In-situ measurements of electrical/thermal conductivity of ceramics, (4) mechanical properties of ceramics and metal/ceramics joints, (5) Varying temperature effect on microstructural evolution and mechanical properties under irradiation to high fluences, (6) Transmutation effect under complex irradiation conditions, (7) Modeling and theoretical studies. Finally, overall discussion was carried out on network activities of the research, and data correlation between fission and fusion neutron irradiation studies. Less

对于聚变运行条件下的元件来说，温度周期等辐照条件的变化对性能变化的影响将是一个严重的问题，此时将发生发电量的可控和偶然变化。由这些辐照效应引起的材料性能退化已被公认为材料辐照效应的重要研究课题，但由于辐照实验的困难，这些现象的细节尚不清楚。近年来，预测在中子辐照条件下这些类型的退化被认为是聚变堆的重要设计参数。这项工作的目的是表征聚变堆结构和功能材料在反应堆运行过程中的损伤过程。仅在辐照过程中的动态现象和辐照条件下材料性能的变化与REA…的稳定和不稳定运行相对应研究了包括核形变在内的更复杂的情况。为了研究除累积效应外的动力效应，试验测试矩阵的参数变得庞大。因此，需要从机理上理解和理论上的预测，才能在有限的辐照体积下，通过精心计划的辐照实验来获取关键信息。测试矩阵侧重于低活性结构材料和功能材料，包括绝缘陶瓷和耐火合金。(1)低活化铁素体钢的辐照蠕变测试和力学性能检测。(2)复合/复合条件下辐照对钒合金力学性能和组织演变的影响；(3)陶瓷电导/热导率的原位测量；(4)陶瓷和金属/陶瓷接头的力学性能；(5)高能注量辐照下温度变化对组织演变和力学性能的影响；(6)复合辐照条件下的相变效应；(7)建模和理论研究。最后，对本研究的网络活动以及裂变和聚变中子辐照研究之间的数据关联进行了全面的讨论。较少

项目成果

M.Satou, K.Abe, H.Kayano: "Microstructures of deformed V-Ti-Cr-Si type alloys after neutrcn irradiation" Journal of Nuclear Materials. 233-237. 426-430 (1996)

M.Satou、K.Abe、H.Kayano：“中子辐照后变形 V-Ti-Cr-Si 型合金的微观结构”核材料杂志。

S.Ohnuki, H.Takahashi, F.G.Garner, J.E.Powel, K.Shiba, A.Hishinuma: "Transmutation-induced embrittlement of vanadium and several vanadium alloys in HFIR" Journal of Nuclear Materials. vol.233-237. 411-415 (1996)

S.Ohnuki、H.Takahashi、F.G.Garner、J.E.Powel、K.Shiba、A.Hishinuma：“HFIR 中钒和几种钒合金的嬗变诱导脆化”核材料杂志。

K.Abe: "Studies on fusion structural materials in Japan" Proc.2nd Japan/China.Symp.on Materials for Advanced Energy Systems & Fission and Fusion Engineering. 261-264 (1994)

K.Abe：“日本聚变结构材料研究”Proc.2nd Japan/China.Symp.on Materials for Advanced Energy Systems

K.Shiiyama, T.Izu, C.Kinoshita, M.Kutsuwado: "Measurements of electrical conductivity of ceramics under electron irradiation in a high voltage electron microscope" Journal of Nuclear Materials. 233-237. 1332-1335 (1996)

K.Shiiyama、T.Izu、C.Kinoshita、M.Kutsuwado：“高压电子显微镜下电子辐照下陶瓷电导率的测量”核材料杂志。

A.Kimura, T.Morimura, M.Narui, H.Matsui: "Irradiation hardening of reduced activation martensitic steels" Journal of Nuclear Materials. 233-237. 319-325 (1996)

A.Kimura、T.Morimura、M.Narui、H.Matsui：“还原活化马氏体钢的辐照硬化”核材料杂志。