Title
Data-Driven Optimization of Plasma Electrolytic Oxidation (PEO) Coatings with Explainable Artificial Intelligence InsightsAuthor (from another institution)
Other institutions
TeknikerUniversity of Manchester
Version
Published version
Rights
© 2024 The AuthorsAccess
Open accessPublisher’s version
https://doi.org/10.3390/coatings14080979Published at
Coatings Vol. 14. N. 8. N.art. 979, 2024Publisher
MDPIKeywords
plasma electrolytic oxidation (PEO)
Machine learning
prediction models
Alloys ... [+]
Machine learning
prediction models
Alloys ... [+]
plasma electrolytic oxidation (PEO)
Machine learning
prediction models
Alloys
coating
process digitalization [-]
Machine learning
prediction models
Alloys
coating
process digitalization [-]
Subject (UNESCO Thesaurus)
Materials technologyArtificial intelligence
Corrosion
Industrial development
UNESCO Classification
Materials technologyArtificial intelligence
Electrolytic coating
Abstract
PEO constitutes a promising surface technology for the development of protective and functional ceramic coatings on lightweight alloys. Despite its interesting advantages, including enhanced wear and ... [+]
PEO constitutes a promising surface technology for the development of protective and functional ceramic coatings on lightweight alloys. Despite its interesting advantages, including enhanced wear and corrosion resistances and eco-friendliness, the industrial implementation of PEO technology is limited by its relatively high energy consumption. This study explores the development and optimization of novel PEO processes by means of machine learning (ML) to improve the coating thickness. For this purpose, ML models random forest and XGBoost were employed to predict the thickness of the developed PEO coatings based on the key process variables (frequency, current density, and electrolyte composition). The predictive performance was significantly improved by including the composition of the used electrolyte in the models. Furthermore, Shapley values identified the pulse frequency and the TiO2 concentration in the electrolyte as the most influential variables, with higher values leading to increased coating thickness. The residual analysis revealed a certain heteroscedasticity, which suggests the need for additional samples with high thickness to improve the accuracy of the model. This study reveals the potential of artificial intelligence (AI)-driven optimization in PEO processes, which could pave the way for more efficient and cost-effective industrial applications. The findings achieved further emphasize the significance of integrating interactions between variables, such as frequency and TiO2 concentration, into the design of processing operations. [-]
Funder
Gobierno VascoProgram
Elkartek 2022Number
KK-2022-00109Award URI
Sin informaciónProject
Superficies multifuncionales en la frontera del conocimiento (FRONT22)Collections
- Articles - Engineering [700]
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