PT  - JOURNAL ARTICLE
AU  - Vodickova, Vera
AU  - Hanus, Pavel
AU  - Pazourkova Prokopcakova, Petra
AU  - Svec, Martin
TI  - Structure Evolution of Multi-Alloyed Iron Aluminides during Two-Step Annealing
DP  - 2024 Dec 21
TA  - Manufacturing Technology Journal
PG  - 985--991
VI  - 24
IP  - 6
AID - 10.21062/mft.2024.099
IS  - 12132489
AB  - The microstructure of single-phase (as-cast) and two-phase (after heat treatment processes) Fe3Al-based alloys doped with silicon, molybdenum, and vanadium/tungsten have been studied. The grain size and phase composition have been determined. The evolution of the secondary phase amount, morphology, and distribution during the heat treatment process has been investigated. Both alloys were heat treated at 1200°C/2 h and, subsequently, at 900 °C. For both alloys, the secondary phase formation started after heat treatment at 900°C /4h, and their amount depended on the annealing time. Vanadium atoms remain in the solid solution, while tungsten atoms partially participate in sec-ondary phase formation.