| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Thermodynamics of Materials in Extreme Environments
|
| Presentation Title |
H-16: Thermodynamic Characteristics of Special Alloys of the Ti-Al system Formed During the Synthesis Process |
| Author(s) |
Borys Sereda, Irina Kruhliak, Dmytro Sereda, Oleg Snasevych, Igor Bilozor |
| On-Site Speaker (Planned) |
Irina Kruhliak |
| Abstract Scope |
As a result of thermodynamic calculations, it was found that the activation energies for the Ni-Al and Ti-Al systems are ~ 45 kJ/mol and ~ 82 kJ/mol, respectively. Analytical equations for the temperature-time dependences of the formation of intermetallic compounds in the Ni-Al and Ti-Al systems and their activation energies were obtained. - temperature synthesis. It has been established that experimental studies confirm theoretical calculations (the relative error does not exceed 5%). The sequence of formation of intermetallic compounds has been revealed: TiAl3 → Ti3Al → TiAl. Thermodynamic analysis shows that in the Ti-Al system the adiabatic combustion temperature is lower than the melting point of the final product. The synthesis process requires preheating the system to temperatures from 400 to 600 K. |