High-temperature steam oxidation behavior of alumina-forming duplex FeNiCrAl and ferritic FeCrAl alloys at 800 °C to 1050 °C

Corrosion behaviour of alumina-forming heat resistant alloy with Ti in high temperature steam

“…The test zone of the quartz tube was maintained at the target temperature of 750 o C. The distilled water containing dissolved oxygen content less than 150 ppb was pumped into the system with a flow rate of 20 ml/min. The detailed description of the steam test equipment setup can be found in our previous publications [20,21]. The specimens corroded in steam are indicated as A-AR and A-PO for the as-rolled and pre-oxidized specimens respectively.…”

Preoxidation Film and Its Anticoking Behavior on an Optimized HP40Nb Alloy with Al, Zr, Y Addition

“…Al 2 O 3 has a very negative Gibbs free energy, thermodynamic stability, and slow growth rate; the melting point of Al 2 O 3 oxide film is as high as 2054 °C, − and increased stability in a high-temperature corrosive atmosphere can well inhibit coking while preventing the diffusion of Fe and Ni elements to the surface of the alloy, significantly improving the high temperature coking resistance of the alloy. Cr in the FeNiCrAl alloy can promote the selective external oxidation of Al. The rapidly formed Cr 2 O 3 reduces the oxygen partial pressure at the interface between the alloy and the film.…”