High temperature oxidation behaviors of SiON coated AISI 441 in Ar + O2, Ar+H2O, and Ar + CO2 atmospheres

Hydrothermal Corrosion of Double Layer Glass/Ceramic Coatings Obtained from Preceramic Polymers

“…Based on the Raman results, we can conclude that a majority of the corrosion products are a mixture of Fe 2 O 3 and Mn, Fe, Cr spinels, as reported by other authors for Fe-Cr ferritic steels tested in water-containing atmospheres [43,44].…”

“…Based on the Raman results, we can conclude that a majority of the corrosion products are a mixture of Fe2O3 and Mn, Fe, Cr spinels, as reported by other authors for Fe-Cr ferritic steels tested in water-containing atmospheres [43,44]. In the coated samples, XRD was used to detect any secondary phases that could result from chemical reactions between the components of the steel substrate, coating, and corrosive agent.…”

“…Both hypotheses correlate well with the absence of Cr2O3 peak in the XRD as well as in the Raman spectrum of corroded steel substrate. Furthermore, we assume that the deionized water reacts with the diffusing metallic species (Cr, Mn and Fe) according to the reaction (5) [44]: In order to identify the corrosion products formed at the steel surface after the corrosion tests, the specimens were also analyzed by Raman spectroscopy, as shown in Figure 8. The most intense feature in the spectrum of the uncoated steel after 192 h of corrosion tests was observed at ~660 cm −1 and corresponds to (Mn, Cr, Fe) 3 O 4 spinel [40].…”

“…Both hypotheses correlate well with the absence of Cr 2 O 3 peak in the XRD as well as in the Raman spectrum of corroded steel substrate. Furthermore, we assume that the deionized water reacts with the diffusing metallic species (Cr, Mn and Fe) according to the reaction (5) [44]:…”

Modeling of Trilayered Oxide Thermally Grown on 441 Ferritic Stainless Steel at 900 °C in Synthetic Air

“…Ferritic stainless steel (AISI 441) is used in many industrial applications such as solid oxide fuel cell (SOFC) technology, gas manifold, etc. At high temperature, oxidation of AISI 441 has already been widely studied [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] with oxide growth being shown to depend on many factors such as composition, preparation surface [9,14], atmosphere [10,13], temperature and time [3].…”