超临界水堆具有热效率高、系统简化、成本低等优点,成为第四代核反应堆中优先发展的堆型.ODS铁索体钢由于其优异的高温力学性能和良好的抗辐照能力成为超临界水堆包壳最有希望的候选材料.旨在回顾ODS铁素体钢制造工艺,包括机械合金化参数的优化,热处理工艺的选择以消除力学性能上的各向异性.根据超临界水堆包壳的服役条件,结合最新的实验数据,对ODS铁素体钢的高温力学性能、在超临界水中的耐腐蚀性以及中子辐照稳定性进行了总结和展望.
Supercritical water reactor (SCWR) is considered to be the most promising reactor among Gen IV reactors due to its higher thermal efficiency, considerable system simplification and improved economics. ODS ferritic steels have been considered as one of promising cladding candidate materials for SCWR because of the excellent properties, such as superior high temperature strength and outstanding swelling resistance. The aim of this paper is to review both the fabrication technology of ODS ferritic steels, including the optimization of mechanical alloying parameters and thermal treatment methods for ameliorating the densification and deforming work induced mechanical anisotropy, and the evaluation of the high temperature mechanical properties, corrosion resistance in SCW and neutron irradiation resistance of ODS ferritic steels according to the working conditions in SCWR.
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