摘要
国产A508-3钢是反应堆压力容器(RPV)用钢,属于低合金铁素体钢,这类材料具有明显的韧脆转变行为,并且在经受中子辐照后,产生明显的辐照脆化效应,降低材料韧性,增加脆性断裂的风险。为掌握中子辐照对压力容器钢断裂韧性的影响,本文研究并掌握了国产A508-3钢0.5CT样品断裂韧性测试技术,并对辐照前后断裂韧性数进行比较,分析了中子辐照对A508-3钢断裂韧性的影响。
The domestic A508-3 steel is a kind of low alloy ferritic steel, using for the reactor pressure vessel(RPV).The material has significant ductile-brittle transition behavior, and after neutron irradiation, it resulting in significant irradiation embrittlement effect, reducing the material toughness, increasingthe risk of brittle fracture. To master the neutron irradiation effect on the fracture toughness of the pressure vessel steel, fracture toughness tests have been done by A508-3 0.5CT specimens, and the analyzed the neutron irradiation on A508-3 steel fracture toughness combining with the fracture data before and after neutron irradiation.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2017年第S1期74-76,共3页
Nuclear Power Engineering
关键词
压力容器
中子辐照
断裂韧性
PRV
Neutron Irradiation
Fracture Toughness
