Titanium alloy-based sheet material for low-temperature superplastic deformation

摘要

The technical results achieved by carrying out the present invention are that of sheets from titanium alloys with a known balanced state-of-the-art production capacity of the final product with low temperature superplastic deformation properties and an optimal balanced chemical composition. Manufacturing. Such results, in weight percent, are 4.5-5.5 Al; 4.5-5.5 V; 0.1-1.0 Mo; 0.8-1.5 Fe; 0.1-0.5 Cr; 0.1-0.5 Ni; 0.16-0.250 balance titanium and impurities, structural molybdenum equivalent ([Mo]eq.) 5 and the aluminum structural equivalent ([Al]eq.) is smaller than 8 and said equivalent has the following formula: [Mo]eq. =[Mo]+[V]/1.5+[Cr]1.25+[Fe]2.5+[Ni]/0.8 and [Al]eq. =[Al]+[O]10+[Zr]/6 determined by a sheet material for low temperature superplastic deformation based on a titanium alloy. [Selection diagram] None