MSA  Vol.4 No.1 , January 2013
Steel Pitting Corrosion Analysis, Using a High Vaccum Epoxy Penetration Technique
ABSTRACT

An epoxy penetration technique was used to reproduce and analyze the pitting corrosion process occurred at a steel coupon surface. The samples were exposed to the resin under high vacuum conditions, in order to fulfill the pits caused by the corrosion process. With this technique, a 3D image of the corrosion damages was obtained. Once the image of the damaged surface was obtained, a Scanning Electron Microscope (SEM) was used to analyze the morphology of the pits exhibited by the steel sample. The results were satisfactory, as different parameters such as the diameter, shape and depth of the pits originated, along with the corrosion preferential path, could be established. According to the results, the use of the epoxy penetration technique may be considered as alternating pitting corrosion analysis technique.


Cite this paper
G. Olivares, M. Gayosso and R. Esquivel, "Steel Pitting Corrosion Analysis, Using a High Vaccum Epoxy Penetration Technique," Materials Sciences and Applications, Vol. 4 No. 1, 2013, pp. 11-13. doi: 10.4236/msa.2013.41002.
References
[1]   American Society for Testing Material G 46 94 (Reapproved 2005), Standard Guide for Examination and Evaluation of Pitting Corrosion.

[2]   American Society for Testing Material G 48 03 (Reapproved 2009), Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride Solution.

[3]   American Society for Testing Material G 1 03, Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens.

[4]   American Society for Testing Material G 15 08, Standard Terminology Relating to Corrosion and Corrosion Testing.

[5]   American Society for Testing Material G 16 95 (Reapproved 2004), Standard Guide for Applying Statistics to Analysis of Corrosion Data.

[6]   American Society for Testing Material E 3 01 (Reapproved 2007), Standard Guide for Preparation of Metallographic Specimens.

[7]   D. A. Jones, “Principles and Prevention of Corrosion,” Second Edition, Prentice Hall, New Jersey, 1996.

[8]   J. T. N. Atkinson and H. VanDroffelaar, “Corrosion and Its Control,” Second Edition, National Association of Corrosion Engineers, Houston, 1985.

 
 
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