The corrosion behavior of ferrous materials immersed in acidic-media using D-optimal design
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 20 December 2019
Issue publication date: 15 June 2020
Abstract
Purpose
The purpose of this paper is to model the corrosion rate behavior for two ferrous materials, carbon steel AISI 1020 and stainless steel AISI 304, immersed in ferric sulfate and ferric chloride solutions using D-optimal design with response surface methodology.
Design/methodology/approach
Experimental design addresses two factors (concentration and contact time) with multilevel categories, in order to predict and compare the corrosion rates of the studied materials immersed in flocculants solutions. A corrosion rate of specimens was calculated from mass loss determinations.
Findings
The authors used a polynomial model to fit the experimental values, thereby predicting significantly higher corrosion rates in ferric chloride solutions, as compared to ferric sulfate.
Originality/value
The authors propose a high fidelity model of the corrosion rate of each carbon steel and stainless steel material using D-optimal design with a response surface method (RSM).
Keywords
Acknowledgements
The authors acknowledge the financial support provided by Pontificia Universidad Católica del Perú (PUCP) by the Project DGI-2015-0005 and Instituto de Corrosión y Protección (ICP-PUCP). The authors thank to MBA Mark J. Anderson for his suggestions and review of the paper.
Citation
Obregón Valencia, D., García Sánchez, H. and Díaz Tang, I. (2020), "The corrosion behavior of ferrous materials immersed in acidic-media using D-optimal design", Multidiscipline Modeling in Materials and Structures, Vol. 16 No. 4, pp. 647-656. https://doi.org/10.1108/MMMS-06-2019-0117
Publisher
:Emerald Publishing Limited
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