TC4钛合金超塑成形研究现状及其发展展望_李瑞婷.pdf

RESEARCH Research Status and Development Trend on Superplastic Forming of TC4 Alloy TC4 m m m SPF/DB SPF/LW σ σ K m TC4 σ K m m m [ABSTRACT] The research status on superplastic m forming (SPF) of TC4 alloy is mainly reviewed, includ- ing the research on strain-rate sensitivity exponent m, mi- m m crostructure evolution and the mechanism of deforming, m m cavitation which contained cavity nucleation and growth, m and fracture mechanism is also included. composite appli- cations of superplastic forming and welding is put forward with emphasis on Superplastic Forming/Diffusion Bonding m