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Role of Na 2 CO 3 on an AISI 330 austenitic stainless steels oxidation at 900°C

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  • Additional Information
    • Contributors:
      Laboratoire Vellave sur l’Élaboration et l'Etude des Matériaux (LVEEM); Université Clermont Auvergne 2017-2020 (UCA 2017-2020 ); IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (IRCELYON-CARE); Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Centre Hospitalier Universitaire de Bordeaux (CHU Bordeaux)
    • Publication Information:
      CCSD
      Wiley-VCH Verlag
    • Publication Date:
      2019
    • Collection:
      HAL Lyon 1 (University Claude Bernard Lyon 1)
    • Abstract:
      International audience ; This work shows the influence of sodium carbonate coatings on the austenitic AISI 330 (Fe-35Ni-19Cr-1.3Si) oxidation during 48 h, at 900 °C. The N 2-5vol.% H 2 gaseous environment was used to simulate industrial heat treatment conditions. Silica scale formation is promoted by low oxygen containing gaseous environments and the high alloy silicon content. On this alloy an amorphous silica scale is formed after the blank material oxidation. It indicates that silicon is free to diffuse in the alloy and forms a silica scale at the internal interface. On Na 2 CO 3 coated specimens, no silica scale is formed. Then, sodium combines with silicon to form amorphous glass particles. A comparison has been performed with results obtained on a AISI 330Cb niobium containing alloy in the same oxidizing conditions. It is then concluded that sodium carbonate coatings could only favours silica formation on niobium containing alloy due to a reaction between sodium and niobium.
    • Accession Number:
      10.1002/maco.201810567
    • Online Access:
      https://uca.hal.science/hal-02300964
      https://uca.hal.science/hal-02300964v1/document
      https://uca.hal.science/hal-02300964v1/file/Article%20BUSCAIL%20Henri%20330%20Na2CO3%20V5.pdf
      https://doi.org/10.1002/maco.201810567
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • Accession Number:
      edsbas.FCC1228B