This study investigated the potential effect of vacuum annealing on microstructure and hot salt corrosion behavior CoNiCrAlY/YSZ/LaMgAl11O19 (LMA) double-ceramic coatings. A hot-salt test revealed that sprayed coatings exhibited an unsatisfactory anti-corrosion performance, LMA layer underwent severe fracture degradation. Vacuum induced a prominent recrystallization amorphous phase in layer, tr...

In this study, the oxidation behavior of AlCoCrFeNi2.1 eutectic high entropy alloy (EHEA) with/without Y doping at 1000 °C and 1100 was reported. The minor is crucial to improving Al2O3 scale adhesion achieving its durability temperatures. rates Y-doped EHEA are comparable even lower compared with conventional Al2O3-forming NiCoCrAlY/CoNiCrAlY alloys. superior resistance highly stable lamellar ...