Uniaxial tensile test data for Gr. 91 - sj material at 24 °C (specimen identifier M254)

In this IBIS experiment (under the framework of the materials domain DEMETRA in the European Transmutation research and development project EUROTRANS) ferritic-martensitic 9 Cr steel (T91), austenitic 316L stainless steel and their welds in direct contact with LBE have been irradiated for 250 full power days up at 300°C to a dose level of 1.25-1.8 dpa, and at 500°C to a dose level of 2.1- 2.7 dpa. The results from the uni-axial tensile tests on the samples irradiated at 300°C are presented. The objective was to investigate the synergetic effects of irradiation and Lead Bismuth Eutectic (LBE) exposure on the mechanical properties of structural materials and welds. No significant effect of LBE on the tensile properties of the specimen has been observed. The measured increase in YS and UTS of 300°C irradiated samples is ascribed entirely to irradiation hardening.

本IBIS实验隶属于欧洲嬗变研发项目EUROTRANS下设的材料领域DEMETRA研究框架。实验针对铁素体-马氏体9Cr钢（T91）、奥氏体316L不锈钢及其与铅铋共晶（Lead Bismuth Eutectic, LBE）直接接触的焊缝开展辐照：在300℃条件下辐照250个满功率运行日，辐照剂量达1.25~1.8 dpa（每原子位移剂量）；在500℃条件下辐照剂量达2.1~2.7 dpa。本文给出了300℃辐照试样的单轴拉伸测试（uni-axial tensile tests）结果。本研究的目标为探究辐照与LBE暴露对结构材料及其焊缝力学性能的协同效应。实验结果显示，未观测到LBE对试样拉伸性能产生显著影响；300℃辐照试样的屈服强度（Yield Strength, YS）与极限抗拉强度（Ultimate Tensile Strength, UTS）的实测提升，完全归因于辐照硬化效应。