RT journal article
T1 Radiometric analysis of haze in bright-annealed AISI 430 ferritic stainless steel
A1 González Leal, Juan María
A1 Gallero Rebollo, Enrique
A1 Núñez, Andrés
A1 Almagro, Juan F.
A2 Física de la Materia Condensada
K1 Ferrite
K1 Maps
K1 Stainless steel
K1 Topography
AB The influence of both topography and optical constants on the optical reflection of bright-annealed AISI 430 ferritic stainless steel has been analyzed to correlate these characteristics with the occurrence of the unwanted haze effect in industrial products. This work reports the analysis of the total-integrated-scattering spectra of brightannealed AISI 430 ferritic steel plates, on the basis of the microfacet model for the bidirectional reflectance function developed by He and Torrance [Siggraph '91, Proc. of the 18th Annual Conference on Computer Graphics and Interactive Techniques, (1991), p. 175]. Such an approach allows for modeling the optical reflection of these stainless-steel industrial products based on roughness parameters, root-mean square height, and autocorrelation length, derived from scale-limited topographic maps. The functional choice of the cutoff wavelength in the high-pass Gaussian filtering of the topographic map is proven critical. Additionally, optical constants n and k of the steels are estimated based on their total reflection spectra, measured in an 8°/di optical geometry. The results suggest that the haze effect could be due to a non-controlled increase in the thickness of the passive layer during the bright-annealing process.
PB Optica Publishing Group
SN 1559-128X
YR 2022
FD 2022-03
LK http://hdl.handle.net/10498/38337
UL http://hdl.handle.net/10498/38337
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026