High temperature fatigue crack growth in titanium microstructures

Titanium alloys are interesting to several industrial applications including transportation and biotechnology’s, aerospace designers having been particularly interested because of the combination of their fatigue and time-dependent mechanical properties, good formability, high specific properties due to a relatively low density, and high resistance to aggressive environmental and impact loads. Titanium based alloys represent 30% and 40% of the total mass in commercial and military engines, respectively, a considerable amount of this mass being devoted to high temperature rotating disc and blade components