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反应堆运行时的堆内环境十分复杂,燃料元件将承受高温、高压及一回路水的腐蚀。当今的核动力堆更高的燃耗和更长的换料周期对燃料元件的水侧腐蚀提出了严格的要求,因此,包壳材料的腐蚀后力学性能研究变得十分重要。
The internal reactor environment is complicated when the reactor is in operation. The fuel elements will withstand the high temperature, high pressure and corrosion of the water in the primary circuit. The higher fuel consumption and longer refueling cycle of today’s nuclear power plants place strict requirements on the water side corrosion of fuel elements. Therefore, the study on the mechanical properties of the cladding materials after corrosion has become very important.