Nucleation and growth of oxide particles on a binary Fe-Mn (1 wt. %) alloy during annealing
Source abstract
Abstract
Abstract An Fe-Mn (1 wt. %) alloy was annealed at 800 °C in N2-5 vol. % H2 with a dew point of −40 °C. The nucleation and growth of external selective oxides of MnO were characterized as a function of ferrite grain orientation. Nucleation occurs successively on Fe{110}, Fe{111} and Fe{100} at 650–700 °C. The oxides are faceted and their shape, size and surface density, measured accurately, are strongly dependent on the ferrite grain orientation. The oxides grow as the annealing time increases. New oxides are formed after 180 s at 800 °C. The associated external selective oxidation mechanisms are discussed.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Microstructure and Mechanical Properties of Steels · High-Temperature Coating Behaviors
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