Powder metallurgy( PM) Ti_2AlNb alloy billet was prepared by hot isostatic pressing route. To study the blooming behavior of PM Ti_2AlNb alloy,high temperature compression tests were conducted on Gleeble-3800 thermalmechanical simulation testing machine. Besides,Simufact finite element( FE) software was also used to simulate the ring rolling process of PM Ti_2AlNb alloy,and X-ray Micro Computed Tomography( Micro-CT) method was used to study the pore distribution in actual rolled PM Ti_2AlNb ring. Results sh...