Nickel Enrichment at the Interface between Oxide Layer and Matrix in Iron-Nickel Alloys

Abstract

GD-OES has been used for characterizing the behavior of nickel during oxidation in Fe-Ni alloys. GD-OES depth profiles show that nickel is enriched at the interface between the oxide layer and matrix, and nickel is almost depleted in the oxide layer. Based on the relationship between the amount of nickel and the oxide thickness, characteristic features of nickel in the oxidation of Fe-Ni alloys is discussed.