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| T/CNIDA 013-2023 Leak-before-break assessment of pressure tube for heavy water reactor (English Version) |
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Introduction of T/CNIDA 013-2023
本文件规定了重水堆用冷加工Zr2.5Nb合金压力管先漏后破的确定性分析方法，以分析含贯穿裂纹压力管在停堆时是否会发生先漏后破的情况，即当监测到压力管由于裂纹轴向贯穿管壁而发生冷却剂泄漏，在从反应堆机组停堆到进入冷态降压状态的过程中，分析裂纹尺寸是否不超过临界裂纹长度。
本文件适用于有关氢致延迟裂纹的老化机制而导致的重水堆锆合金压力管先漏后破分析。
本文件不适用于压力管与排管接触导致的劣化机制。
Contents of T/CNIDA 013-2023