Helium bubble formation in refractory single-phase concentrated solid solution alloys under MeV He ion irradiation

N. Jia, Y. Li, H. Huang, S. Chen, D. Li, Y. Dou, X. He, W. Yang, Y. Xue, K. Jin*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

41 引用 (Scopus)

摘要

In order to investigate the compositional effects on helium bubble formation in the refractory concentrated solid-solution alloys with single-phase body-centered cubic structures, TiVNbTa and TiVTa alloys, as well as a conventional V-alloy are irradiated with 1.5 MeV He ions to the fluences of 2 × 1016 and 1 × 1017 ion/cm2 at 700 °C. Under the same irradiation fluence, the average sizes of helium bubbles in TiVNbTa and V-alloy are similar, but the bubbles in TiVTa are much larger. Moreover, while the bubbles in TiVNbTa and V-alloy are uniformly distributed at both fluences, bubble clusters are observed in the TiVTa sample irradiated to the higher fluence. Both faceted and spherical bubbles are observed in all the three alloys, but the edges of the faceted bubbles have different preferential orientations: mostly <110> in TiVTa, mostly <100> in V-alloy, and co-appearance in TiVNbTa. Radiation induced segregation becomes more significant with increasing irradiation fluence; V-enrichment as well as Ti-, Nb-, and Ta-depletion around He bubbles is observed in TiVNbTa under the high fluence irradiation, while the segregation in the other two alloys is much less considerable.

源语言英语
文章编号152937
期刊Journal of Nuclear Materials
550
DOI
出版状态已出版 - 7月 2021

指纹

探究 'Helium bubble formation in refractory single-phase concentrated solid solution alloys under MeV He ion irradiation' 的科研主题。它们共同构成独一无二的指纹。

引用此

Jia, N., Li, Y., Huang, H., Chen, S., Li, D., Dou, Y., He, X., Yang, W., Xue, Y., & Jin, K. (2021). Helium bubble formation in refractory single-phase concentrated solid solution alloys under MeV He ion irradiation. Journal of Nuclear Materials, 550, 文章 152937. https://doi.org/10.1016/j.jnucmat.2021.152937