Effects of current-assisted heat treatment time on microstructure evolution and superplastic properties of Ti-22Al-24Nb-0.5Mo alloy

Hydroforming of Ti-6Al-4V Acetabular Cups

Titanium alloy bellows has advantages of light weight, excellent mechanical property, good heat resistance and corrosion resistance, etc. But the cold formability of titanium alloy is poor, so it is difficult to manufacture titanium alloy bellows by traditional mechanical forming and hydroforming. In this paper, current assisted superplastic forming technology was used to process titanium alloy bellows, which could overcome some shortcomings of traditional superplastic forming effectively, such as slow heating rate, high energy loss and low production efficiency. And titanium alloy bellows formed by this technology is of good quality with uniform wall thickness, light oxidation.

Tao Zhao

Papers

Current Assisted Superplastic Forming of Titanium Alloy Bellows