The corrosion behavior of ferrous materials immersed in acidic-media using D-optimal design. Issue 4 (20th December 2019)

• Record Type: Journal Article
• Authors: Obregón Valencia, Daniel; García Sánchez, Halter; Díaz Tang, Isabel
• Is Part Of: Multidiscipline modeling in materials and structures. Volume 16:Issue 4(2020)
• Page Start: 647
• Page End: 656
• Publication Date: 2019-12-20
• Subjects: Response surface method -- Experimental design -- Corrosion rate -- Flocculants; Materials -- Mathematical models -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.11015118
• DOI: 10.1108/MMMS-06-2019-0117
• Languages: English
• ISSNs: 1573-6105

Abstract

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).