2019 Volume 60 Issue 2 Pages 355-363
Utilizing γ/α transformation allows for a wider range of structure control for Al2O3-forming FeCrAl alloys considered as a candidate for the advanced fast reactor fuel cladding. In this research, nickel addition was explored as a method for creating γ-austenite at 1000°C and retaining α-ferrite at room temperature through computing phase diagram by FactSage and implementing HT-XRD & EPMA experiments. In addition, Al2O3 scale formation by oxidation test was implemented at 1000°C. Those results indicated that structure control by the γ/α transformation is realized with appropriate aluminum and nickel addition, keeping continuous Al2O3 scale formation.