Ring-tensile properties of irradiated oxide dispersion strengthened ferritic/martensitic steel claddings
Ring-tensile properties of irradiated oxide dispersion strengthened ferritic/martensitic steel claddings
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DOI：
10.1016/j.jnucmat.2004.04.084
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发表时间：
2004-08
影响因子：
3.1
通讯作者：
T. Yoshitake;Y. Abe;N. Akasaka;S. Ohtsuka;S. Ukai;A. Kimura
中科院分区：
文献类型：
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作者：
T. Yoshitake;Y. Abe;N. Akasaka;S. Ohtsuka;S. Ukai;A. Kimura
研究了快中子辐照对氧化弥散强化（ODS）铁素体/马氏体钢包层环拉伸性能的影响，该包层通过再结晶和α -γ相变改善了组织各向同性。样品在实验快堆JOYO中使用材料辐照装置在670 ~ 807 K的温度下辐照，快中子辐照强度为5.0×1025to 3.0×1026n/m2（E>0.1 MeV）。在5组辐照条件下对样品进行了辐照后环拉伸试验。实验结果表明，辐照后强度提高了10%。显微组织的改善大大提高了这些样品的伸长率，辐照后样品仍保持了可观的伸长率。这些ODS钢包层的环拉伸性能在本研究达到的影响水平内保持良好。
The effects of fast neutron irradiation on ring-tensile properties of the oxide dispersion strengthened (ODS) ferritic/martensitic steel claddings with improved microstructural isotropy from recrystallization and α–γ phase transformation were investigated. The samples were irradiated in the experimental fast reactor JOYO using the material irradiation rig at temperatures between 670 and 807 K to fast neutron fluences ranging from 5.0×1025to 3.0×1026n/m2(E>0.1 MeV). The post-irradiation ring-tensile tests were carried out on samples with five sets of irradiation conditions. The experimental results showed that strengths were increased by 10% due to irradiation. Microstructural improvement considerably increased elongations for these samples and specimens retained respectable elongation after irradiation. The ring-tensile properties of these ODS steel claddings remain excellent within the fluence level achieved in this study.