RT journal article
T1 A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
A1 González Leal, Juan María
A1 Gallero Rebollo, Enrique
A1 Núñez, Andrés
A1 Almagro Bello, Juan F.
A2 Física de la Materia Condensada
K1 Stainless steel
K1 Visual appearance
K1 Image analysis
K1 Light reflectance value
K1 Haze
AB In this paper, a novel method for evaluating the degree of haze on the surface of brightfinish AISI 430 ferritic stainless steels is presented. Haze is an undesirable effect that typically manifests as a loss of brightness and specularity on the steel surface. Visual inspections are used for quality control, with the tested product compared to reference surfaces. This method is strongly influenced by the visual acuity of the operator and the lighting conditions of the production line. In addition, the use of portable glossmeters does not provide a good correlation between the degree of cloudiness and the parameters of the instrument, which are typically defined for evaluating painted surfaces. Furthermore, neither method allows for a quantification of the degree of haze in the stainless steel, only an acceptance or rejection evaluation. The method described in this paper attempts to overcome these limitations by analyzing gray-level histograms of images of high-contrast Ronchi-type patterns reflected on the steel surfaces. The results show that this method is sensitive to haze and allows the degree of haze on the surfaces of these industrial products to be quantified. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
PB ELSEVIER
SN 2238-7854
YR 2022
FD 2022-11
LK http://hdl.handle.net/10498/27581
UL http://hdl.handle.net/10498/27581
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026