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Journal of Materials Engineering and Performance

Erschienen in:

01.03.2011

Oxidation of Uncoated and Aluminized 9-12% Cr Boiler Steels at 550-650 °C

verfasst von: J. Metsäjoki, E. Huttunen-Saarivirta, T. Lepistö

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 2/2011

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Abstract

In this paper, oxidation behavior of 9-12% Cr steels P91 and HCM12A is studied in air and in a mixture of air and water vapor. Comparison is made between these steels in uncoated condition and coated with aluminum diffusion coating by a slurry method. Oxidation tests were carried out at 550, 600, and 650 °C for a discontinued duration of 1000 h; every 250 h the specimens were slowly cooled to room temperature and weighed. SEM + EDS and XRD characterization were performed after 500 and 1000 h. The results showed that oxidation rate of uncoated P91 and HCM12A was significantly higher in the mixture of air and water vapor than in air. Oxidation resistance of the studied materials improved substantially when they were aluminized.

Vorheriger Artikel Study of Steel Emissivity Characteristics and Application of Multispectral Radiation Thermometry (MRT)

Nächster Artikel Box-Behnken Design of Experiments Investigation of Hydroxyapatite Synthesis for Orthopedic Applications

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Titel: Oxidation of Uncoated and Aluminized 9-12% Cr Boiler Steels at 550-650 °C
verfasst von: J. Metsäjoki
E. Huttunen-Saarivirta
T. Lepistö
Publikationsdatum: 01.03.2011
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 2/2011
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-010-9675-4

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