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| Superplastic Behavior of TA32 High Temperature Titanium Alloy |
| ZHOU Lina1,2,3, FU Mingjie1, LI Xiaohua1,2,3, HAN Xiuquan1,2,3 |
1. AVIC Manufacturing Technology Institute, Beijing 100024, China;
2. Aeronautical Key Laboratory for Plastic Forming Technologies, Beijing 100024, China;
3. Beijing Key Laboratory of Digital Plasticity Forming Technology and Equipment, Beijing 100024, China |
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Abstract 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.
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2023, 
