摘要
为了研究低活化马氏体CLAM钢的抗辐照肿胀性能,在450℃下对CLAM钢进行大剂量高能电子辐照的原位动态实验.利用超高压透射电子显微镜观察发现,CLAM钢中产生了大量的间隙原子型位错环和多面体形状的辐照空洞.分析了它们的形核和长大规律以及相关机制.计算表明,CLAM钢在高能电子辐照下的最大肿胀率为0·26%,具有较好的抗辐照肿胀性能.
To research the resistance of China low activation martensitic （CLAM） steel to irradiation swelling, the microstructure of CLAM steel irradiated by high energy elections at 450℃ was in-situ observed on a high voltage electron microscope. The results indicate that a lot of voids and dislocation loops form by irradiation. The dependence of the amount and size of these damages on the irradiation dose are evaluated and discussed. The irradiation swelling is about 0.26 % and thus CLAM steel is considered as a material with high resistance to swelling.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2009年第7期842-847,共6页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.50771017)
国家重点基础研究发展计划基金资助项目(No.2007ID102)
关键词
结构材料
CLAM钢
核聚变
辐照损伤
空洞
位错环
structure materials
CLAM steel
nuclear fusion
irradiation damage
voids
dislocation loops
