Quantitative analysis of the impact of the compositional complexity in a series of Ni-containing concentrated solid-solution alloys, Ni, NiCo, NiFe, NiCoCr, NiCoFeCr, NiCoFeCrMn and NiCoFeCrPd, on the evolution of defects produced by 1 MeV Kr ion irradiation at 773 K is reported. The dynamics of the evolution of the damage structure during irradiation to a dose of 2 displacements per atom were observed directly by performing the ion irradiations in electron transparent foils in a transmission electron microscope coupled to an ion accelerator. The defect evolution was assessed through measurement of the defect density, defect size and fraction of perfect and Frank loops. These three parameters were dependent on the alloying element as well as the number of elements. The population of loops was sensitive to the ion dose and alloy composition as faulted Frank loops were observed to unfault to perfect loops with increasing ion dose. These dependences are explained in terms of the influence of each element on the lifetime of the displacement cascade as well as on defect formation and migration energies.

定量分析一系列含Ni的固溶合金Ni，NiCo，NiFe，NiCoCr，NiCoFeCr，NiCoFeCrMn和NiCoFeCrPd的组成复杂性对1 MeV Kr离子在773辐照产生的缺陷演变的影响报告了K。在耦合至离子加速器的透射电子显微镜中，通过在电子透明箔中进行离子辐照，可以直接观察到辐照期间损伤结构演化至每原子2个位移的剂量的动力学。通过测量缺陷密度，缺陷尺寸以及完美和弗兰克环的分数来评估缺陷的演变。这三个参数取决于合金元素以及元素的数量。回路的数量对离子剂量和合金成分敏感，因为观察到有缺陷的弗兰克回路会随着离子剂量的增加而断裂成完美的回路。这些依赖性是根据每个元素对位移级联寿命以及缺陷形成和迁移能的影响来解释的。