A virtual instrument for quantitative assessment of pitting corrosion
Abstract
Purpose
The purpose of this investigation was to develop a digital instrument for the quantitative evaluation of pitting corrosion in metals.
Design/methodology/approach
This investigation comprised two central parts: research, testing and monitoring of the formation of pitting by conventional methods and applying American Society for Testing and Materials (ASTM) Standards, and the development of a virtual instrument based on the LabVIEW 2010 platform.
Findings
The methodology used was suitable for the analysis of pitting on carbon steel and aluminum alloy UNS A96061, used in the aerospace industry.
Practical implications
This technique allows pits to be to localized, measured and quantified on metallic surfaces, for corrosion evaluation in atmospheric and industrial environments.
Originality/value
This combination of conventional and digital methods can assist in corrosion control of pitting in industrial equipment.
Keywords
Acknowledgements
The authors wish to thank the Materials and Corrosion, the Applied Electrochemistry and the Automation and Virtual Instrumentation Laboratories of the Institute of Engineering, University of Baja California, México, for the development and application of the Virtual Instrument. R. Garcia acknowledges the Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico, for the scholarship received to complete his PhD studies in the framework of the “Programa de Maestria y Doctorado en Ciencias e Ingeniería”, of the Institute of Engineering. The authors are also grateful to T. Herrera and I. Garcia, Universidad Autonoma de Guadalajara, Mexico for the preparation and application of the paint coatings on carbon steel and to Honeywell Aerospace Co., Mexicali, for the use of the salt fog chamber.
Citation
Ramos, I.R., Valdez, S.B., Zlatev, K.R., Schorr, W.M., Carrillo, B.M., Stoytcheva, M.S., Garcia, I.R. and Martinez, M.M. (2014), "A virtual instrument for quantitative assessment of pitting corrosion", Anti-Corrosion Methods and Materials, Vol. 61 No. 5, pp. 287-292. https://doi.org/10.1108/ACMM-06-2013-1269
Publisher
:Emerald Group Publishing Limited
Copyright © 2014, Emerald Group Publishing Limited