Thermodynamic calculations in ternary titanium-aluminium-manganese system

• Published in: Journal of the Serbian Chemical Society Vol. 73; no. 4; pp. 499 - 506
• Main Authors: Kostov, Ana, Zivkovic, Dragana
• Format: Journal Article
• Language: English
• Published: Serbian Chemical Society 01.01.2008
• Subjects: FactSage thermochemical software and database; thermodynamic calculations; Ti–Al–Mn ternary system
• ISSN: 0352-5139; 1820-7421
• DOI: 10.2298/JSC0804499K

Thermodynamic calculations in the ternary Ti-Al-Mn system are shown in this paper. The thermodynamic calculations were performed using the FactSage thermochemical software and database, with the aim of determining thermodynamic properties, such as activities, coefficient of activities, partial and integral values of the enthalpies and Gibbs energies of mixing and excess energies at two different temperatures: 2000 and 2100 K. Bearing in mind that no experimental data for the Ti-Al-Mn ternary system have been obtained or reported. The obtained results represent a good base for further thermodynamic analysis and may be useful as a comparison with some future critical experimental results and thermodynamic optimization of this system. U ovom radu prikazani su rezultati termodinamickih proracuna u ternarnom sistemu Ti-Al-Mn. FactSage termohemijski softver i baza podataka korisceni su za sve proracune u ovom sistemu u cilju definisanja termodinamickih velicina stanja kao sto su aktivnosti, koeficijenti aktivnosti, parcijalne i integralne vrednosti za Gibsove energije mesanja i Gibsove energije u visku na dvema razlicitim temperaturama: 2000 i 2100 K. U dosadasnjoj literaturi nema publikovanih eksperimentalnih podataka vezanih za termodinamicke proracune u ispitivanom sistemu, jer se radi o visokotemperatunom sistemu. Zato dobijeni rezultati predstavljaju jednu dobru polaznu bazu za svaku dalju termodinamicku analizu i mogu biti od koristi za poredjenja sa nekim buducim kriticnim eksperimentalnim rezultatima, kao i u termodinamickoj optimizaciji navedenog sistema.