Relationship between Structure and Properties of Intermetallic Materials Based on γ-TiAl Hardened In Situ with Ti3Al

In this work, intermetallic materials based on γ-TiAl in situ strengthened with the Ti3Al phase have been obtained from initial components of titanium and aluminum under conditions free SHS-compression one technological step ten seconds. This method combines process combustion mode self-propagating high-temperature synthesis (SHS) shear deformation synthesized materials. The following compositions studied (mol): Ti–Al, 1.5 3 Ti–Al. Thermodynamic calculations carried out actual temperature study has measured. To increase exothermicity compositions, a “chemical furnace” mixture Ti–C powders used, which allows us to stabilize front. It found that selected increased 890–1120 1000–1350 °C. results X-ray powder diffraction SEM are presented, mechanical tribological characteristics measured, 3D images wear grooves given. decrease Ti molar fraction an Al lead (hardness up 10.2 GPa, modulus elasticity 215 GPa) (wear 4.5 times, coefficient friction 2.4 times)