A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel

In this paper, a novel method for evaluating the degree of haze on the surface of bright-finish 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 qualit...

Full description

Bibliographic Details
Main Authors: J.M. González-Leal, E. Gallero, A. Nuñez, J.F. Almagro
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785422014363
_version_ 1798006123845910528
author J.M. González-Leal
E. Gallero
A. Nuñez
J.F. Almagro
author_facet J.M. González-Leal
E. Gallero
A. Nuñez
J.F. Almagro
author_sort J.M. González-Leal
collection DOAJ
description In this paper, a novel method for evaluating the degree of haze on the surface of bright-finish 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.
first_indexed 2024-04-11T12:50:07Z
format Article
id doaj.art-c889476ce25447138847fbdaf461a7f0
institution Directory Open Access Journal
issn 2238-7854
language English
last_indexed 2024-04-11T12:50:07Z
publishDate 2022-11-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj.art-c889476ce25447138847fbdaf461a7f02022-12-22T04:23:14ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012197103A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steelJ.M. González-Leal0E. Gallero1A. Nuñez2J.F. Almagro3Department of Condensed Matter Physics, Faculty of Sciences, University of Cadiz, 11510, Puerto Real, Cadiz, Spain; Corresponding author.Department of Condensed Matter Physics, Faculty of Sciences, University of Cadiz, 11510, Puerto Real, Cadiz, SpainLaboratory & Research Section, Technical Department, ACERINOX Europa S.A. U, 11379, Palmones, SpainLaboratory & Research Section, Technical Department, ACERINOX Europa S.A. U, 11379, Palmones, SpainIn this paper, a novel method for evaluating the degree of haze on the surface of bright-finish 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.http://www.sciencedirect.com/science/article/pii/S2238785422014363Stainless steelVisual appearanceImage analysisLight reflectance valueHaze
spellingShingle J.M. González-Leal
E. Gallero
A. Nuñez
J.F. Almagro
A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
Journal of Materials Research and Technology
Stainless steel
Visual appearance
Image analysis
Light reflectance value
Haze
title A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
title_full A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
title_fullStr A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
title_full_unstemmed A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
title_short A novel method for assessing haze in the visual appearance of bright-annealed AISI 430 ferritic stainless steel
title_sort novel method for assessing haze in the visual appearance of bright annealed aisi 430 ferritic stainless steel
topic Stainless steel
Visual appearance
Image analysis
Light reflectance value
Haze
url http://www.sciencedirect.com/science/article/pii/S2238785422014363
work_keys_str_mv AT jmgonzalezleal anovelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT egallero anovelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT anunez anovelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT jfalmagro anovelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT jmgonzalezleal novelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT egallero novelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT anunez novelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel
AT jfalmagro novelmethodforassessinghazeinthevisualappearanceofbrightannealedaisi430ferriticstainlesssteel