Oxidation Behavior and Interfacial Bonding Properties of NiCrAl Alloys

The oxidation rate (1.58×10−4 mg2⋅cm−4⋅h−1) at the early oxidation period (0∼12 h) is higher than the rate (1.04×10−4 mg2⋅cm−4⋅h−1) at the late oxidation period (12∼100 h) indicate that the oxidation resistance of the NiCrAl alloy is improved with the extension of oxidation time. The oxidation mechanism is transformed from the surface reaction control to diffusion control.