Assessment of the corrosivity of AISI 1020 steel through microbiological analyzes and the mass loss technique in a clayey soil
DOI:
https://doi.org/10.33448/rsd-v12i6.41752Keywords:
Clay soil; Corros will not; AISI 1020 steel; Mass loss rate; Microbiological analysis.Abstract
This search aims to evaluate the corrosivity of AISI 1020 steel in clayey soil through microbiological analyzes and the mass loss technique. Through the results obtained, according to the identification methodology of the Bergey manual, the presence of two microorganisms was verified, Acidithiobacillus thiooxidans and ferrooxidans , responsible for the biocorrosion process , in addition to filamentous fungi. The presence of these bacteria does not generate a classification for the soil, however, it is known that they can accelerate the corrosion process when in contact with a metallic structure. Regarding the mass loss rate, a criterion used to simulate the assessment of corrosivity in pipes, NACE Standard RP-07-75 was adopted, which defined the intensity of the corrosive process, obtaining as a result for the sterilized sample a value considered low, since it was free of microbial activities and any other contaminating factor, but for the sample without sterilization, the soil was classified as having severe potential. Therefore, this research sought to correlate the characteristics of the soil representative of the Amazon with a process of corrosion of buried pipes due to the presence of microorganisms, which would correspond to a microbiological corrosion. Although, in many cases, there is suspicion of the accuracy of corrosion monitoring techniques, mass loss and microbiological identification techniques were used, which had a positive result in relation to the microbiological one.
References
ASTM. (2003) - “Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens”.
Bergey, D. H. & Holt, J. G. (1994). Bergey's manual of determinative bacteriology. Bergey's Manual of Determinative Bacteriology, (9th ed.), Ed. Lippincott Williams & Wilkins.
Brewis, T. (1996). Extraction of metals by bacterial oxidation. Mining.
Castro. D. F (2013). Study of the corrosion of 1020 steel in the natural clayey soil of the Amazon Region. Federal University of Amazonas.
Da Silva, S. N. (2007). Study of soil corrosion of steels for cathodically protected pipelines. f 83. Dissertation (Master's Degree in Engineering) – UFRGS School of Engineering.
EMBRAPA. (2018) Manual of soil analysis methods. National Center for Soil Research. EMBRAPA-CNPS. 573 p. (2nd ed.) rev. Current.
Erthal, C., Werner, K. S., Avila, L.B., Casartelli, R. O., Silva, S. N. & Rodrigues, M. R. (2017). Corrosivity of soils in the coal region of Rio Grande do Sul on buried metallic pipes. Blucher chemical Engineering Proceedings, 1(4).
Ferreira, A. M. (2005). Study of soil corrosion – assessment of corrosivity of soil samples from the Antarctic continent and the Southeast Region of Brazil. 2005. 131 f. Dissertation (Master of Science in Metallurgical and Materials Engineering) – Federal University of Rio de Janeiro.
Gentle, V. (2012). Corrosion. (6th ed.), Publisher, LTC - Technical and Scientific Books.
Gentle, V. (2022). Corrosion. (7th ed.), Publisher, LTC - Technical and Scientific Books.
, L. P. (2001). Corrosion Diagnosis and Cathodic Protection in Buried Pipes of Industrial Plants, Technical Bulletin of IEC – Installations and Corrosion Engineering Ltda.
Labegalini P. R, Labegalini, J. A., Fuchs, R.D. & Almeida, M. T. (1992). Mechanical design of overhead transmission lines. (2nd ed.), Edgar Blücher.
MacDonald, D. D. & Sikora, E. (1998). Engelhardt , G. Characterizing electrochemical systems in the frequency domain., v 43, Electrochimica Acta.
NBR 6458/2016. (2016). Soil - Determination of specific mass.
NBR 6459/2016. (2017). Soil - Determination of the liquidity limit. Errata 1: 2017.
NBR 7180/2016. (2016). Soil — Determination of plasticity limit.
NBR 7181/2016. (2016). Soil - Granulometric analysis.
NACE RP-07-75. (1999). Standard recommended practice, preparation, installation, analysis and interpretation of corrosion coupons in oilfield operations.
Oguzie, E. E., Agochukwu, I. B. & Onuchukwu, A. I. (2004). Monitoring corrosion susceptibility of mild steel in varying soil textures by corrosion product counting technique, v. 84. Materials Chemistry and Physics.
Oliveira, S. H. (2010). Study of the use of xanthan and sodium hypochlorite as a strategy to control biocorrosion. 118 f. Thesis (Doctorate in Mechanical Engineering). Federal University of Pernambuco.
Roberge, P. R. (1999). Handbook of Corrosion Engineering. McGraw-Hill.
Rodrigues, L. M. (2006). Study of steel corrosion for API 5L X56 pipelines in RS soils. 97 f. Thesis (Doctorate in Engineering) – School of Engineering of UFRGS, Porto Alegre.
Sharma, S. & Kumar, A. (2021). Recent advances in metallic corrosion inhibition: A review, v. 322, Journal of Molecular Liquids.
Trabanelli, G., Zucchi, F. & Arpaia, M. (1972). Methods for determining soil corrosivity in relation to metallic structures., III(4), Pure and Applicata Chemistry.
Videla, H.A. (2003). Biocorrosion, biofouling and biodeterioration of materials. Edgard Blucher Ltd.
Wang, J., Qi, Y., Zhao, X. & Zhang, Z. (2020). Electrochemical investigation of corrosion behavior of epoxy modified silicate zinc-rich coatings in 3.5% NaCl solution. Coatings, 10, 1-15, 10.3390/coatings10050444.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Ariadne Pimentel Machado; Takeshi Matsuura; Paulo Rogerio da Costa Couceiro
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.