Liu, C.; Ma, H.; Fan, P.; Li, K.; Zhang, Q.; Du, A.; Feng, W.; Su, X.; Zhu, S.; Yuan, D. Cavity Swelling of 15-15Ti Steel at High Doses by Ion Irradiation. Materials2024, 17, 925.
Liu, C.; Ma, H.; Fan, P.; Li, K.; Zhang, Q.; Du, A.; Feng, W.; Su, X.; Zhu, S.; Yuan, D. Cavity Swelling of 15-15Ti Steel at High Doses by Ion Irradiation. Materials 2024, 17, 925.
Liu, C.; Ma, H.; Fan, P.; Li, K.; Zhang, Q.; Du, A.; Feng, W.; Su, X.; Zhu, S.; Yuan, D. Cavity Swelling of 15-15Ti Steel at High Doses by Ion Irradiation. Materials2024, 17, 925.
Liu, C.; Ma, H.; Fan, P.; Li, K.; Zhang, Q.; Du, A.; Feng, W.; Su, X.; Zhu, S.; Yuan, D. Cavity Swelling of 15-15Ti Steel at High Doses by Ion Irradiation. Materials 2024, 17, 925.
Abstract
The swelling behavior of titanium-modified austenitic stainless steel 15-15Ti was investigated by pre-implantation of He at room temperature followed by Ni irradiation at 580 °C to peak doses of 120, 240 and 400 dpa. Relatively smaller cavities were observed in the zone of helium implantation while large cavities appeared in the region near the damage peak. A correction formula of the dpa curve was proposed and applied for samples with large swelling. It is found that the steady-state swelling rate of 15-15Ti keeps at ~1% /dpa even to 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 excessive helium on swelling can be deduced at such doses.
Keywords
15-15Ti; ion irradiation; irradiation swelling; helium effect; steady-state swelling
Subject
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright:
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