High-Temperature Oxidation Study in a Multi-Oxidant Environment Using 18O Tracer

Juho Lehmusto, Anton Ievlev, James Kurley, Bruce A. Pint

Research output: Contribution to journalArticlepeer-review

Abstract

The goal of this study was to use 18O-enriched water to better understand the role of H2O in high-temperature oxidation. Seven model and three commercial M-Cr and M-Cr-Al alloys were studied in air with 10% of H2O at 800 °C for 5 h. Oxygen from water vapor was more reactive than oxygen from the air and 18O enriched at the outermost layers of the formed Cr- and Al-rich oxides. Alloys with Al and/or Ti additions showed signs of internal oxidation but 18O was not enriched inside the alloy in locations with internal oxidation. Depending on the alloy Al content, the oxide went from Al oxidation beneath a chromia scale to external alumina scale formation.

Original languageEnglish
Pages (from-to)1-18
Number of pages18
JournalHigh Temperature Corrosion of Materials
Volume102
Issue number1
DOIs
StatePublished - Feb 2025

Funding

The authors would like to thank T. M. Lowe and T. Jordan for their assistance with the experimental work. This work has been carried out within the Research Council of Finland project \u201CInitiation and propagation of high-temperature corrosion reactions in complex oxygen-containing environments\u201D (Decision no. 348963). This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Industrial Efficiency and Decarbonization Office, Combined Heat and Power Program. M. Ridley and M. Romedenne provided helpful comments on the manuscript.

FundersFunder number
U.S. Department of Energy
Industrial Efficiency and Decarbonization Office

    Keywords

    • O-enriched water
    • High-temperature oxidation
    • Ni-based alloys
    • Water vapor

    Fingerprint

    Dive into the research topics of 'High-Temperature Oxidation Study in a Multi-Oxidant Environment Using 18O Tracer'. Together they form a unique fingerprint.

    Cite this