RIA: Development of Fatigue-Resistant Low-Activation Materials for Fusion Reactor Applications

一项关于阿尔法辐射对几种低活性钢疲劳寿命影响的实验研究将在RIA奖下得到支持。具体来说，将研究氦离子注入的α辐射对近表面区域微观结构的影响，并将其与循环变形引起的应变局部化相关联。利用滑动位错与辐射诱导缺陷的相互作用，将对不同成分的疲劳应变局部化进行模拟。

An experimental study of the effects of alpha radiation on the fatigue life of several low-activation steels will be supported under an RIA award. Specifically, the effects of alpha radiation by helium ion implantation on the microstructure of near-surface regions will be studies and correlated with strain localization from cyclic deformation. The fatigue strain localization will be modeled for various compositions using the interactions of glide dislocations with the radiation-induced defects.