Publication Type Journal Article
Title Corrosion protection of steel cut-edges by hot-dip galvanized Al(Zn,Mg) coatings in 1wt\% NaCl: Part II. Numerical simulations
Authors Olga Dolgikh Hans Simillion Sviatlana V. Lamaka Alexandre C. Bastos Huibin B. Xue Maryna Taryba Andre R. Oliveira Christian Allely Bart Van den Bossche Krista Van den Bergh Joost De Strycker Johan Deconinck
Groups CSSE
Journal MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
Year 2019
Month May
Volume 70
Number 5
Pages 780-792
Abstract In this paper a mechanistic model is elaborated to simulate the corrosion behavior of aluminum-zinc-magnesium coatings on steel. The model is based on the mass transport and reactions of the ions in the electrolyte (MITReM). The finite element method has been used, which allows to perform time-dependent simulations with micrometer scale to study local corrosion effects. The formation of corrosion products and the prediction of electrolyte concentration distributions are compared for different metallic coating compositions. The spatial and temporal simulation of complex precipitates provides an additional tool to validate the model through corrosion product characterization. The simulation results are compared to experimental observations, presented in part I of this paper. The MITReM simulations are limited to the micro-scale and therefore to small geometries. A link is made with the potential model which can be applied on macro-scale objects. A qualitative agreement is found between the simulations at both scales and the experiments. Further quantification of this model would optimize the simulations for material design and for predictive maintenance.
DOI http://dx.doi.org/10.1002/maco.201810210
ISBN
Publisher
Book Title
ISSN 0947-5117
EISSN 1521-4176
Conference Name
Bibtex ID ISI:000471998800002
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