Development of damage structure in 16Cr-4Al ODS steels during electron-irradiation

作者：Yu C Z^*; Oka H; Hashimoto N; Ohnuki S

来源：Journal of Nuclear Materials, 2011, 417(1-3): 286-288.

DOI：10.1016/j.jnucmat.2011.02.037

Development of irradiation damage structure in ODS ferritic steels was studied by means of in-situ observation of HVEM up to 10 dpa at 773 K. In this study, standard ODS steel, Fe-16Cr-4A1-2W-0.35Y(2)O(3) and other of steels including Zr or Hf were examined. During electron-irradiation, preferential nucleation of dislocation loops was observed on oxide particles. In Hf- or Zr-added steels dislocation loops showed a low growth rate and a low number density compared with the standard steel. These results are explained by the sink effect at the interface between the matrix and oxide particles.

• 出版日期2011-10-1