Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film
Multilayered conversion coatings (MCCs) can be produced on carbon steel via sol-gel dip coating to improve the corrosion resistance of alumina film/conversion coating/carbon steel systems in a saline medium. Nonetheless, the deposition parameters used to produce the MCCs can affect this performance,...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2025-05-01
|
| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000200210&lng=en&tlng=en |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850264757806825472 |
|---|---|
| author | Antonio Vitor Castro Braga Dalva Cristina Baptista do Lago André Rocha Pimenta Lilian Ferreira de Senna |
| author_facet | Antonio Vitor Castro Braga Dalva Cristina Baptista do Lago André Rocha Pimenta Lilian Ferreira de Senna |
| author_sort | Antonio Vitor Castro Braga |
| collection | DOAJ |
| description | Multilayered conversion coatings (MCCs) can be produced on carbon steel via sol-gel dip coating to improve the corrosion resistance of alumina film/conversion coating/carbon steel systems in a saline medium. Nonetheless, the deposition parameters used to produce the MCCs can affect this performance, and the optimum conditions are generally found using univariate studies. In this work, Silica/boehmite (SB) and boehmite/silica (BS) MCCs were produced on carbon steel via sol-gel dip coating, using a central composite experimental design to evaluate the effects of deposition time (t), substrate removal speed (v), and heat treatment time (HT) on corrosion resistance of the complete system in a saline medium. This unprecedented statistical study allowed us to determine optimal MCC deposition conditions for producing coating systems with superior anti-corrosive properties. v and HT had the most significant impact on anticorrosive performance. The SB-MCC system, optimized at t = 116 s, v = 368 mm/min, and HT = 70 min, showed the best corrosion resistance (Rg = 81.6 kΩ cm2). Improved surface roughness and better coverage of sharp structures enhanced alumina adhesion, increasing stability in saline environments compared to BS-MCC/alumina. |
| format | Article |
| id | doaj-art-1507c3fa26fc4338bdd96dd1890f0694 |
| institution | OA Journals |
| issn | 1516-1439 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj-art-1507c3fa26fc4338bdd96dd1890f06942025-08-20T01:54:38ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392025-05-0128suppl 110.1590/1980-5373-mr-2025-0049Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina FilmAntonio Vitor Castro BragaDalva Cristina Baptista do LagoAndré Rocha Pimentahttps://orcid.org/0000-0002-5492-3009Lilian Ferreira de Sennahttps://orcid.org/0000-0002-6316-6687Multilayered conversion coatings (MCCs) can be produced on carbon steel via sol-gel dip coating to improve the corrosion resistance of alumina film/conversion coating/carbon steel systems in a saline medium. Nonetheless, the deposition parameters used to produce the MCCs can affect this performance, and the optimum conditions are generally found using univariate studies. In this work, Silica/boehmite (SB) and boehmite/silica (BS) MCCs were produced on carbon steel via sol-gel dip coating, using a central composite experimental design to evaluate the effects of deposition time (t), substrate removal speed (v), and heat treatment time (HT) on corrosion resistance of the complete system in a saline medium. This unprecedented statistical study allowed us to determine optimal MCC deposition conditions for producing coating systems with superior anti-corrosive properties. v and HT had the most significant impact on anticorrosive performance. The SB-MCC system, optimized at t = 116 s, v = 368 mm/min, and HT = 70 min, showed the best corrosion resistance (Rg = 81.6 kΩ cm2). Improved surface roughness and better coverage of sharp structures enhanced alumina adhesion, increasing stability in saline environments compared to BS-MCC/alumina.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000200210&lng=en&tlng=enDesign of experimentsDesirability functionBoehmiteSilicaAlumina |
| spellingShingle | Antonio Vitor Castro Braga Dalva Cristina Baptista do Lago André Rocha Pimenta Lilian Ferreira de Senna Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film Materials Research Design of experiments Desirability function Boehmite Silica Alumina |
| title | Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film |
| title_full | Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film |
| title_fullStr | Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film |
| title_full_unstemmed | Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film |
| title_short | Statistical Evaluation and Optimization of Sol-Gel Dip Coating Deposition Parameters of Multilayered Conversion Coatings for Anticorrosive Alumina Film |
| title_sort | statistical evaluation and optimization of sol gel dip coating deposition parameters of multilayered conversion coatings for anticorrosive alumina film |
| topic | Design of experiments Desirability function Boehmite Silica Alumina |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000200210&lng=en&tlng=en |
| work_keys_str_mv | AT antoniovitorcastrobraga statisticalevaluationandoptimizationofsolgeldipcoatingdepositionparametersofmultilayeredconversioncoatingsforanticorrosivealuminafilm AT dalvacristinabaptistadolago statisticalevaluationandoptimizationofsolgeldipcoatingdepositionparametersofmultilayeredconversioncoatingsforanticorrosivealuminafilm AT andrerochapimenta statisticalevaluationandoptimizationofsolgeldipcoatingdepositionparametersofmultilayeredconversioncoatingsforanticorrosivealuminafilm AT lilianferreiradesenna statisticalevaluationandoptimizationofsolgeldipcoatingdepositionparametersofmultilayeredconversioncoatingsforanticorrosivealuminafilm |