Two types of Fe–Cu binary alloys: Fe-0.15Cu and Fe-0.3Cu with and without 0.25 wt% C were irradiated with fission neutrons at damages ranging from 4 × 10⁻⁶ to 0.16 dpa at 573 K. The effect of C on the formation of Cu precipitates and vacancy clusters in the alloys was investigated. The addition of C delayed the formation of vacancy clusters in both the alloys. This is because the addition of C increased the migration energy of vacancies, i.e., decreased the migration of vacancies. However, C did not affect the growth of microvoids. Although the effect of C on the formation of Cu precipitates depended on the irradiation dose, the effect was insignificant at high irradiation doses.

裂变中子辐照了两种类型的Fe-Cu二元合金：Fe-0.15Cu和Fe-0.3Cu（含和不含0.25 wt％C），在573 K下的损伤范围为4×10 ^-6至0.16 dpa。研究了合金中铜沉淀物的形成和空位簇。C的添加延迟了两种合金中空位簇的形成。这是因为添加C增加了空位的迁移能，即降低了空位的迁移。但是，C不会影响微孔的生长。尽管C对Cu沉淀物形成的影响取决于辐照剂量，但在高辐照剂量下效果不明显。