Gamma-ray irradiation behavior of a hexagonal Ti–6Ta alloy applied in spent nuclear fuel reprocessing

Li, Huan; Liu, Chengze; Xu, Jing; Huang, Hai; Wu, Junyu; Liu, Houlong; Zhao, Xu; Wu, Jing

doi:10.1007/s10853-022-07889-z

Cited by 5 publications

(1 citation statement)

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“…[ 19 ] Nevertheless, to the best of our knowledge, current research on Ti35 alloy has focused on examining its corrosive and mechanical characteristics, and the irradiation effects of Ti35 alloy have rarely been studied, although it is also of great concern for the spent fuel reprocessing facilities. [ 20 ] Therefore, understanding the irradiation damage behaviors early is of fundamental importance for developing irradiation‐resistant Ti35 alloy for advanced nuclear reactors.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Studies of Primary Irradiation Damage in α‐Type Ti35 Alloy

Liu

Cai

et al. 2023

Physica Status Solidi (b)

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α‐type Ti35 alloy (Ti‐6 wt%Ta) has been recommended as one of the candidate materials for advanced nuclear reactors due to its excellent overall performance. Nonetheless, irradiation effects on the alloy remain scarcely understood by far. Herein, the primary irradiation damage of Ti35 alloy is investigated from multiple perspectives using atomistic simulations. Results show that with the increasing energy of the primary knock‐on atom (2 keV ≤ E PKA ≤ 10 keV), the number of Frenkel pairs (N FP) gradually increases independent of the incident direction of PKA (IDPKA) and the ambient temperature (100 K ≤ T ≤ 700 K), while it exhibits a downtrend at each IDPKA as the T elevates. The magnitude of E PKA can affect the anisotropy of IDPKA on irradiation damage. Unrelated to E PKA, IDPKA, and T, di‐interstitial clusters and N vacancy > 3 clusters respectively account for the largest proportion of their categories, highlighting their stability. In any case, vacancies are more prone to cluster than interstitials. The increase of E PKA has a greater effect on vacancy clustering than interstitial clustering but can promote the increase in both the clustering fractions. An important insight into the understanding of the irradiation damage behaviors for the alloy has been provided.

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Section: Introductionmentioning

confidence: 99%