A new titanium alloy with a combination of high strength, high strain hardening and improved ductility

A ternary β-metastable titanium Ti–9Mo–6W (wt.%) was designed. A very high work hardening rate close to 2100 MPa and a uniform deformation larger than 35% were recorded, thanks to combined transformation-induced plasticity and twinning-induced plasticity effects. In this paper, detailed microstructural analysis was performed to understand the deformation process. Various mechanisms, {3 3 2}〈1 1 3〉 mechanical twinning, stress-induced ω phase and stress-induced α″ martensite were identified after mechanical testing, resulting in a complex network of deformed microstructures with very special synergetic features.