High-Temperature Oxidation Resistance of Austenitic Stainless Steel Cr18Ni11Cu3Al3MnNb

The kinetic curve of the high-temperature oxidation of austenitic stainless steel Cr18Ni11Cu3Al3MnNb at different temperatures was measured by weighting method. It is showed that the oxidation curves at 700 and 800 °C followed the parabolic law, and the steel presented an excellent anti-oxidation. T...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2012-05, Vol.19 (5), p.74-78
Main Authors: LI, Dong-sheng, DAI, Qi-xun, CHENG, Xiao-nong, WANG, Rong-rong, HUANG, Yan
Format: Article
Language:English
Subjects:
Applied and Technical Physics
austenitic stainless steel
Austenitic stainless steels
Chromium
cyclic oxidation
Diffraction
Engineering
high-temperature oxidation
Iron and steel industry
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Oxidation
Oxidation resistance
oxidation scale
Oxide coatings
Physical Chemistry
Processes
spinel
Structural steels
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Summary:The kinetic curve of the high-temperature oxidation of austenitic stainless steel Cr18Ni11Cu3Al3MnNb at different temperatures was measured by weighting method. It is showed that the oxidation curves at 700 and 800 °C followed the parabolic law, and the steel presented an excellent anti-oxidation. The surface morphology and structure of the oxide film were studied by scanning electron microscopy and X-ray diffraction methods. A dense oxide film was attained at 700 and 800 °C, mainly composed of the hexagonal Al2O3, Fe2O3, and a small amount oxide of Cr at 700 °C. At 900 °C the oxide film started to delaminate, and was composed of (Cr, Fe)2O3 and the spinel CuCrMnO4 and Fe(Cr, Al)2O4.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(12)60103-4