Irradiation resistance of preceramic paper‐derived SiCf/SiC laminated composites

Li, Ké; Kashkarov, Egor; Ma, Hailiang; Fan, Ping; Zhang, Chenglong; Zhang, Peng; Cao, Xingzhong; Zhang, Jilong; Wu, Zhaohui; Лидер, А. М.; Travitzky, Nahum; Yuan, Daqing

doi:10.1007/s10853-022-07294-6

Cited by 5 publications

(1 citation statement)

References 42 publications

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“…Heavy-ion irradiation can yield high damage rates without residual radioactivity and at very low cost [11]. Therefore, heavy-ion irradiation is widely used as a surrogate method for neutron irradiation [11][12][13][14][15][16]. Ion irradiations have been critical not only in the research and understanding of radiation effects, but also in the development of innovational materials used in reactors.…”

Section: Introductionmentioning

confidence: 99%

Cavity Swelling of 15-15Ti Steel at High Doses by Ion Irradiation

Liu,

Ma,

Fan

et al. 2024

Materials

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The titanium-stabilized austenitic stainless steel Fe-15Cr-15Ni, which shows enhanced resistance to irradiation swelling compared with more traditional 316Ti, has been selected as a core material for fast reactors. Data on the evolution of irradiation swelling in 15-15Ti steels at very high doses, which cannot be easily achieved by neutron irradiation, are still lacking. In this paper, the swelling behavior of the titanium-modified austenitic stainless steel 15-15Ti was investigated by pre-implantation of He at room temperature followed by Ni-ion irradiation at 580 °C to peak doses of 120, 240 and 400 dpa. Relatively small cavities were observed in the zone of helium implantation, while large cavities appeared in the region near the damage peak. A correction formula for the dpa curve was proposed and applied to samples with large swelling. It was found that the steady-state swelling rate of 15-15Ti remains at ~1%/dpa even at high doses. By comparing the swelling data of the helium-implanted and helium-free regions at same doses, 70 dpa and 122 dpa, the suppression of swelling by excessive helium can be deduced at such doses.

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