Abstract
The purpose of this study was to investigate the oxidation behavior and the development of residual stress in the nickel-based superalloy Haynes 282 at temperatures ranging from 800 to 950 °C. Detailed examinations of the oxide scale surfaces were conducted using Scanning Electron Microscopy (SEM) and Focused Ion Beam (FIB). The residual stresses in the Cr2O3 scales were measured using X-ray diffraction (XRD). A layered chromia scale was formed as a result of the oxidation process, and the kinetics of this process were found to be parabolic, controlled by Chromium diffusion. An external Cr2O3 layer was observed in cross-sections, along with Kirkendall voids at the alloy-oxide interface. All residual stresses of chromia observed were tensile intrinsically.
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