RT journal article
T1 Characterisation of High Temperature Oxidation Phenomena during AISI 430 Stainless Steel Manufacturing under a Controlled H-2 Atmosphere for Bright Annealing
A1 Collado García, Irene
A1 Núñez Galindo, Andrés
A1 Almagro Bello, Juan F.
A1 González Leal, Juan María
A1 Botana Pedemonte, Francisco Javier
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Física de la Materia Condensada
K1 bright annealing
K1 ferritic stainless steel
K1 high temperature oxidation
K1 SEM
K1 Raman spectroscopy
K1 XPS
AB Localised-in-the-edge oxidation of four AISI 430 alloys was investigated after an industrial bright annealing process. The oxidised surface of each specimen was characterised by X-ray photoelectron spectroscopy (XPS), Raman-spectroscopy and SEM. The results showed that the selective oxidation of Cr and Mn took place at the coil edges of AISI 430. This led to the formation of an oxide scale based on Cr2O3 and MnCr2O4. On the other hand, the formation of Cr(OH)(3) and MnOOH in the outer part of the oxide scale was related to the effect of the H-2-N-2 environment on the annealing furnace. The results concluded that the composition of Cr and Mn in the alloy determined the composition of the oxidation products. However, the effect of annealing time was minor in this oxidation mechanism, which slightly contributed to an increase in the cation diffusion from the steel to the oxide. Finally, the results obtained indicate that the colouration of the coil edges displayed in each studied material varies according to the alloy chemical composition and annealing time.
PB MDPI
SN 2075-4701
YR 2021
FD 2021-02
LK http://hdl.handle.net/10498/24751
UL http://hdl.handle.net/10498/24751
LA eng
NO This research was funded by the "Proyectos de I+D Individuales" programme, Centro para el Desarrollo Tecnologico Industrial (CDTI), Ministerio de Economia y Competitividad from the Spanish Government-project "FERRINOP".
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026