Abstract
Abstract Ti–Al intermetallic alloys have a great potential for high-temperature lightweight applications. They also have rather complicated microstructure and sophisticated behaviour under thermal–mechanical loading. In many cases, Ti–Al component optimization is sufficient when using effective elastic properties of these alloys. Computation of such effective properties is difficult due to various orientations of the phases micro-constituents. Here a simple micromechanical model is applied to calculate effective stiffness and other elastic parameters of Ti–Al alloys as function of composition, orientation and temperature. The dependence of these properties is computed and possibility of simplified, quasi-isotropic or orthotropic properties application is discussed.
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