Oxidation of AISI 304L and 348 Stainless Steels in Water at High Temperatures

Oxidation of AISI 304L and 348 stainless steels was investigated in water at 1000 – 1350 °C by TGA, SEM, EDS, and Raman spectroscopy. Linear-Parabolic kinetics and multilayer oxide scales with voids were found for both alloys. Based on the experimental results, AISI 304L presented higher oxidation r...

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Bibliographic Details
Published in:Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2020-01, Vol.23 (6), p.1
Main Authors: Avelar, Alan Matias, Giovedi, Claudia, Abe, Alfredo Yuuitiro, Mourão, Marcelo Breda
Format: Article
Language:English
Subjects:
AISI 304L
AISI 348
Austenitic stainless steels
ENGINEERING, CHEMICAL
Hydrogen
Hydrogen production
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
Multilayers
Oxidation
Oxidation resistance
Raman spectroscopy
Scale (corrosion)
Stainless steel
Zircaloys (trademark)
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Summary:Oxidation of AISI 304L and 348 stainless steels was investigated in water at 1000 – 1350 °C by TGA, SEM, EDS, and Raman spectroscopy. Linear-Parabolic kinetics and multilayer oxide scales with voids were found for both alloys. Based on the experimental results, AISI 304L presented higher oxidation resistance and higher activation energy. Zircaloy-4 kinetic results were used for validation and performance comparison. In severe accidents conditions, stainless steel might lead to a faster hydrogen production comparing to Zircaloy.
ISSN:1516-1439
1980-5373
1980-5373
DOI:10.1590/1980-5373-mr-2020-0373