摘要
压力容器(RPV)在工况条件下经中子辐照后将导致力学性能退化,发生辐照脆化现象。相关研究表明,引起RPV钢辐照脆化的因素包括自身材料因素和服役环境因素。材料因素是RPV钢自身性质对辐照脆化的影响,包括材料化学成分、微观组织特性与晶粒尺寸,环境因素是RPV服役环境对辐照脆化的影响,包括中子注量、中子注量率、中子能谱和辐照温度。
The performance degradation of nuclear power plant reactor pressure vessel（RPV）will happen after neutron irradiation in service conditions.Relevant researches show that factors of the material properties and work environment are associated with the irradiation embrittlement.The material properties are the RPV steel properties that associate with the irradiation embrittlement,including the chemical component,microstructure and grain size;and the work environment is the RPV service condition which connects with the embrittlement,containing the neutron fluence,neutron fluence rate,neutron energy spectrum and irradiation temperature.
出处
《中国冶金》
CAS
2014年第7期1-5,26,共6页
China Metallurgy
基金
国家高技术研究发展计划(863)支持项目(2012AA050901)
关键词
RPV
辐照脆化
影响因素
RPV
irradiation embrittlement
influence factors
