[en] The irradiation growth of zirconium, Zircaloy-2, Zr-2.5% Nb, Excel, Zr,Al, niobium-rich zirconium alloys and Ti has been measured, as a function of neutron fluence, at 566 to 621 K and at 703 to 778 K. In the lower temperature range, the measured growths were found to be in general agreement with previously reported values. In the higher temperature range, the growth had a strong temperature dependence with a growth maximum generally occurring within the range. In polycrystalline zirconium, a peak in the swelling behaviour occurred near the growth peak, but the isotropic expansion associated with the swelling was too small to account for the growth. Dimensional changes in the Zr,Al and niobium-rich Zr alloys were consistent with decompositon of certain crystalline phases present in these alloys before irradiation. A number of cubic materials, including Cu and Ni were also irradiated. The dimensional changes in these were found to be in good agreement with previously reported swelling behaviour. 70 refs