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The influence of alloying elements on the structure and hardness of experimental titanium-based pseudo-β-alloys in the initial cast state, after all-round forging at 900 °C, subsequent quenching from the temperatures of β- and (α+β)-regions and aging at 500 °C within 1—10 hours has been studied. It was established that the Ti—6Al—4V—1Mo—1Cr—3.5Fe—2Sn—2Zr—0.15C alloy had the maximum hardness (53.5 HRC) in the case of aging at 500 °C for 6 hours after preliminary quenching from (α+β)-region.

The article shows the possibility of creating structure of the same type and, accordingly, a close level of properties in hot-rolled semi-finished products of the VST2K alloy with different chemical composition by means of heat treatment.