Swelling studies of vanadium and a vanadium−1 wt.% titanium alloy using ion simulation techniques

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Abstract
The void swelling of HPV and V−1 Ti has been investigated by irradiating the samples side by side with 3−MeV 51V+ ions to damage doses between 2.4 and 54 dpa at a temperature of 700°C. Examination of the irradiated samples by transmission electron microscopy revealed that voids and dislocation networks had formed at 2.4 dpa in HPV and that swelling increased less than linearly with dose. In contrast, V−1 Ti showed negligible swelling even at 54 dpa. The swelling resistance of V−1 Ti to large doses is believed to be, at least in part, due to irradiation−induced precipitation.

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