The superplastic behavior of TA32 titanium alloy sheet was investigated by constant strain rate tensile tests at deformation temperature range of 920–980 ℃ and strain rate range of 5×10

–5

–1×10

–3

s

–1.

The deformation characteristics and microstructure evolution during superplastic bulging of cone shaped part was analyzed. The results show that TA32 alloy provides superior superplastic deformation capability

with a maximum elongation up to 864% at 920 ℃ with the strain rate of 1×10

–3

s

–1

. The height of the cones is higher at 940 ℃ and 960 ℃

90 mm and 92 mm

respectively

and microstructure has no significant change with different deformation.