Subcascade Formation Ratio in Neutron-Irradiated Stainless Steels
Subcascade Formation Ratio in Neutron-Irradiated Stainless Steels
复制标题
中子辐照不锈钢中的子级联形成率
DOI：
10.1088/1742-6596/674/1/012002
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Q. Xu
中科院分区：
文献类型：
--
作者：
T. Yoshiie;Y. Satoh;S.S. Huang;M. Horiki;K. Sato;Q. Xu
高能粒子辐照对金属产生级联损伤。如果粒子能量足够高，一个级联就会被分成几个次级联。在每个亚级中，一个空位丰富的区域被一个间隙区包围。预计在空缺丰富的地区将直接形成空缺集群。本研究利用正电子湮灭寿命谱和透射电镜对商业不锈钢及其模型合金的亚级联中空位团簇形成率进行了估计。奥氏体不锈钢和铁素体/马氏体不锈钢的空位团簇形成率分别为1.7× 10-3和9.1× 10-5
High-energy-particle irradiation in metals produces cascade damage. If the particle energy is high enough, a cascade is divided into subcascades. In each subcascade, a vacancy rich area is surrounded by an interstitial area. Vacancy clusters are expected to form directly in the vacancy rich area. In this study, the vacancy cluster formation ratio in subcascades was estimated by positron annihilation lifetime spectroscopy and transmission electron microscopy in commercial stainless steels and their model alloys. The vacancy cluster formation ratio was 1.7× 10-3 and 9.1× 10-5 in austenitic stainless steel and ferritic/martensitic stainless steel, respectively