Superplastic Deformation Behavior of High-Temperature Titanium Alloys VT8 and Ti6242S

Abstract

Superplastic forming (SPF) is an effective process that allows for forming the sheet metal parts of complex configuration. Superplastic deformation behavior of conventional sheets of a high temperature titanium alloys VT8 и Ti6242S was studied by constant strain rate tests in a temperature range of 850–950 ∘C. The research identified the optimum superplastic temperature of studied alloys in a constant strain rate of 3 × 10−4 s−1 with elongation above 150 %.