Abstract
Initial oxidation of type 430 stainless steels with Mn (0.09, 0.38 and 0.9 mass%) was studied in 0.165 atm O 2-N 2 atmosphere at 1273 K. For 0.09 Mn steel, only corundum type oxide was formed. Initially the oxide film was rich in Fe and the Cr concentration in the oxide increased with oxidation time until 30 s when the film composition became constant. The oxidation behavior of the 0.38 and 0.9 Mn stainless steels was similar to that of 0.09 Mn steel until 30 s, after which it became different: Mn(II) was detected at the film surface and spinel type oxide, which was nucleated from pre-existing corundum type oxide, appeared simultaneously. Between 30 and 300 s, the oxide composition and growth mechanism changed and finally the oxidation behavior reached a steady state. Different models of the oxidation processes are proposed for type 430 stainless steels with different manganese contents.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
