RT journal article
T1 Analysis of the Visual Appearance of AISI 430 Ferritic Stainless Steel Flat Sheets Manufactured by Cool Rolling and Bright Annealing
A1 González Leal, Juan María
A1 Gallero Rebollo, Enrique
A1 Ramírez del Solar, Milagrosa
A1 Núñez, Andrés
A1 Almagro Bello, Juan F.
A2 Física de la Materia Condensada
K1 bright annealing
K1 ferritic stainless steel
K1 visual appearance
K1 colorimetry
K1 surface metrology
AB This article reports on the relation between the surface topography and the optical reflectance,both total and diffuse, of different samples of AISI 430 ferritic stainless steel. Gaussianfilters with different cutoff wavelengths were applied to the height maps of the surface topography ofthe samples, to separate the different scales of surface roughness involved in optical scattering in thevisible range of the spectrum. Significant anisotropy, related to the rolling process, was found in thetopography. An effective roughness slope parameter was defined from the dependence of the ratiobetween the root mean square height and the autocorrelation length on the cutoff wavelength. Thisroughness slope demonstrated an exceptionally good linear relationship with CIE 1931 luminance,which was calculated from the diffuse reflection spectra. The color uniformity of the samples wasanalyzed based on their CIE L*a*b* coordinates under daylight and LED illumination. The resultsconfirmed the strong influence of manufacturing process on the surface characteristics of AISI 430ferritic stainless steel sheet products with a bright finish.
PB MDPI
SN 2075-4701
YR 2021
FD 2021-07
LK http://hdl.handle.net/10498/25678
UL http://hdl.handle.net/10498/25678
LA eng
NO This work was co-financed by the 2014-2020 ERDF Operational Programme and by the Department of Economy, Knowledge, Business and University of the Regional Government of Andalusia. Project reference: FEDER-UCA18-106321.
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026