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...
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Format: | Article |
Language: | English |
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Elsevier
2022-11-01
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Series: | Journal of Materials Research and Technology |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422014363 |
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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. |
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institution | Directory Open Access Journal |
issn | 2238-7854 |
language | English |
last_indexed | 2024-04-11T12:50:07Z |
publishDate | 2022-11-01 |
publisher | Elsevier |
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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 |
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