On Mechanism underlying high temperature compressive behavior of Ti-17 alloy

The research reveals that: (1) in β region, the dominant mechanism is dynamic recovery characteristic of diffusion, the activation energy for β region is 161kJ/mol, close to self-diffusion activation energy of β phase., (2) in (α+β) region, dislocation slip is the dominant mechanism, the activation energy of (α+β) region is 437kJ/mol, far above self-diffusion activation energy of α and β phases., and (3) in near β region, both dynamic recovery and dislocation slip mechanisms exist.