Power-law creep diagram of γ-Ti-53Al intermetallics

The temperature and stress dependence of the minimum creep rate in polycrystalline Ti-53.0mol%Al intermetallics was investigated over a wide range of conditions. Three types were observed and the activation energy and stress exponent were determined for each type. The regions where these three types can be observed were mapped on log ε-log σ and log ε-1/T coordinates for creep of polycrystalline Ti-53Al intermetallics.