The task of this work was to study the structure of the zirconium-vanadium alloys quenched from the [beta]-region and then reheated for vanadium contents from 5 to 10at.%. The alloys containing 5; 8 and 10 at.% V with iodide Zr 99.9 % and electrolytic V 99.9 % were melted in an arc furnace under a helium atmosphere. The 30 g buttons were arc-melted several times and pored into a cylindrical mould 8 mm dia. The resulting bars were deformed by rolling into a thickness of 4 mm, homogenized in a vacuum 1 [times] 10[sup [minus]3] Pa at 1,000 C for 3 h and quenched in iced water. Then the samples were cut from the quenched bars and divided in two groups. The samples of the firs tone were used in the experiments without additional treatment. The samples of the second group were encapsulated with a helium atmosphere and aged at 400 C for 30 min. These samples were examined by x-ray analysis and electron microscopy. In conclusion the authors would like to note that the intermediate stage (metastable eutectoid decomposition) evidently can be found in the zirconium-base alloys and titanium-base alloys when [omega]-phase forms and eutectoid decomposition rate is suitable.