材料微观结构辐照损伤机制研究数据集

熔盐堆材料面临辐照的考验。为了评估材料的服役安全，需要开展研究，揭示材料辐照过程中的微观结构演化行为，以揭示材料宏观性能演化的微观机制。本数据集包含合金和石墨在离子辐照后的微观结构和微纳力学的测试表征数据，揭示了合金的辐照硬化效应，合金中的氦泡演化行为及其对结构和性能的影响，合金的辐照腐蚀行为，石墨的辐照形貌演化和孔隙变化行为。对于理解材料的中子辐照宏观力学性能以及评价材料的服役安全至关重要，为评估材料的服役安全提供了依据。对应指标明确合金材料、核石墨、碳-碳复合材料的辐照后微观结构变化机制。数据集中测试数据是在2012到2023年之间开展的合金和石墨材料的离子辐照研究数据。辐照实验在上海应物所的4MV加速器和近物所的320kV离子综合实验平台上开展，样品辐照温度在室温和700oC之间。离子辐照的过程和损伤分布采用SRIM软件计算得到。辐照后，样品开展了扫描电镜、透射电镜、X射线衍射、原子力显微镜、电子探针等手段的微观结构分析，开展了纳米压痕测试、微柱压缩等力学性能测试。

Materials for molten salt reactors face irradiation-induced challenges. To evaluate the operational safety of these materials, research must be conducted to elucidate the microstructural evolution behavior during irradiation, thereby revealing the microscopic mechanisms underlying the evolution of their macroscopic properties. This dataset contains test and characterization data on microstructures and micromechanical properties of alloys and graphite after ion irradiation. It covers the irradiation hardening effect of alloys, the evolution of helium bubbles in alloys and their impacts on microstructure and mechanical properties, the irradiation corrosion behavior of alloys, as well as the irradiation-induced morphology evolution and pore variation behavior of graphite. This dataset is critical for understanding the macroscopic mechanical properties of materials under neutron irradiation and assessing their operational safety, providing a reliable basis for material service safety evaluation. The corresponding characterization indicators clarify the post-irradiation microstructural evolution mechanisms of alloy materials, nuclear graphite, and carbon-carbon composite materials. The test data in this dataset were collected from ion irradiation studies on alloys and graphite conducted between 2012 and 2023. The irradiation experiments were performed on the 4 MV accelerator at the Shanghai Institute of Applied Physics (SINAP) and the 320 kV integrated ion experimental platform at the Institute of Modern Physics (IMP). The irradiation temperatures of the samples ranged from room temperature to 700 °C. The ion irradiation process and damage distribution were calculated using the SRIM software. Following irradiation, the samples were analyzed for microstructures using techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), atomic force microscopy (AFM), and electron probe microanalysis (EPMA), and underwent mechanical property tests such as nanoindentation and micropillar compression.