Hot Deformation Globularization Kinetic Processes of TC11 Titanium Alloy with Lamellar Structure

Hot deformation processes of TC11 with β-annealed lamellar structure were investigated over the range of temperature 980℃,950℃,800℃,strain rate 0.001 s-1 and 0.1s-1,and reduction from 30% to 70% by hot compression tests.The effects of thermal-mechanical parameters on deformation behavior and globularization processes were analyzed.According to the characteristic of globularization fraction evolution,a modified Avrami globularized kinetic model was established,which is identical to test data well.