Dynamic Oxidation Behavior and Exceptional High-Temperature Resistance of Nano Particle-Strengthened Superalloy (MA 754) under Cyclic Temperature Conditions

Abstract

The degradation of industrial components due to high-temperature oxidation poses a significant challenge. This study highlights the excellent oxidation resistance of the MA 754 superalloy under cyclic high-temperature conditions at 1100 °C. The weight change during thermal cycles was measured to assess the kinetics of oxidation. Optical microscopy, scanning electron microscopy, X-ray diffraction, and energy dispersive spectroscopy were used to characterize the oxide scales’ microstructure, morphology, phases, and composition. The results revealed that the MA 754 superalloy demonstrated excellent resistance to oxidation, with a mean net mass change of 0.032 mg/cm² over the oxidation time. The oxidation products identified were NiO and NiCr₂O₄. A small peak suggests the possible formation of Al₂O₃. The oxide scales’ morphology changed from pyramidal to granular type during the oxidation test. The oxidation steps of the MA 754 superalloy were determined by comparing the microstructures of the alloy surface next to the oxide layer.

Keywords

Cyclic oxidation / Nickel-based superalloy / MA 754 / Oxide pyramids

Acknowledgments

The authors would like to thank the Department of Materials Science and Engineering at Shiraz University for providing access to laboratory facilities and technical equipment used in this study. We also acknowledge the support of laboratory staff for their assistance with SEM, XRD, and and EDS analyses.

Author Contributions

Conceptualization, M.J.H. and A.M.; Methodology, A.M.; Software, A.M.; Validation, A.M., M.J.H.; Formal Analysis, A.M.; Investigation, A.M.; Resources, M.J.H.; Data Curation, A.M.; Writing—Original Draft Preparation, A.M.; Writing—Review & Editing, M.J.H.; Visualization, A.M.; Supervision, M.J.H.; Project Administration, M.J.H.; Funding Acquisition, M.J.H.

Ethics Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

The statement is required for all original articles which informs readers about the accessibility of research data linked to a paper and outlines the terms under which the data can be obtained.

Funding

This research received no external funding.

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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