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

Autor: Baptiste Latouche, Ismaël Guillotte, Yves Wouters, Laurence Latu-Romain, Thibault Roy
Rok vydání: 2021
Předmět:
Zdroj: Oxidation of Metals. 96:31-41
ISSN: 1573-4889
0030-770X
Popis: Ferritic stainless steel (AISI 441) oxidation was studied at 900 °C in synthetic air. At short time of oxidation (3 min), the oxide scale is comprised of chromia including some MnCr2O4 nodules (of a few tens of nanometers in diameter) and exhibits n-type conduction. Later, after 10 h, a trilayered morphology was observed with an internal equiaxed chromia, an intermediate columnar chromia and a top covering spinel layer. A model for oxide scale growth has been developed in this paper, taking into account all experimental observations and earlier studies.
Databáze: OpenAIRE