International Journal of Modern Science and Technology · ISSN 2456-0235

Research Article · Biological Sciences · Volume 1, Issue 3 · Jun 2016 · Pages 97–101

Investigations on microbiologically influenced corrosion

Juhaina Saleh Fadhil Al-Fori, Parimal Sharad Bhambare, Elansezhian Rasu

  • Juhaina Saleh Fadhil Al-Fori: Caledonian College of Engineering, Department of Mechanical & Industrial Engineering, Seeb, Muscat, Sultanate of Oman., parimal@caledonian.edu.om, juhaina11220@cceoman.net
  • Parimal Sharad Bhambare: Caledonian College of Engineering, Department of Mechanical & Industrial Engineering, Seeb, Muscat, Sultanate of Oman., parimal@caledonian.edu.om, juhaina11220@cceoman.net
  • Elansezhian Rasu: Caledonian College of Engineering, Department of Mechanical & Industrial Engineering, Seeb, Muscat, Sultanate of Oman., parimal@caledonian.edu.om, juhaina11220@cceoman.net

Abstract

Microbial influenced corrosion is a type of corrosion that happen on a metal's surface under the seawater. Microbial influenced corrosion occurs due to the colonization of microorganism on the surface, these microorganisms may be fungus, bacteria or algae. In this project the E. coli bacteria are used to investigate the microbial influenced corrosion on metal sample. Metal sample which is an alloy steel is coated with different coatings namely: rubber, epoxy, polyurethane and chrome. Rubber and chrome were spray painted, while epoxy and polyurethane were applied using brush. The samples with these coatings are tested using different tests to find out the best one which can resist microbial influenced corrosion better than the others. These tests are; wet and dry test, atmospheric test, corrosion monitoring test and hardness test. To find the corrosion progress the weight loss and corrosion rate is found in the samples. The optical microscope is used to understand the corrosion progress in the metal surfaces and for the hardness test. The result analyzed shown that polyurethane is the best coating because of its excellent properties in resisting and preventing microbial influenced corrosion.

Keywords

Metals; Alloy steel; Microbial Influenced Corrosion; Polyurethane; E. coli

References

  1. Kakooei S, Ismail MC, Ariwahjoedi B. Mechanisms of microbiologically influenced corrosion: a review. World Applied Sciences Journal 17 (2012) 524- 531.
  2. Li K, Whitfield M, Van Vliet KJ. Beating the bugs: Roles of microbial biofilms in corrosion. Corrosion Reviews 31 (2013) 73-84.
  3. Tuthill AH, Avery RE, Lamb S, Kobrin G. Effect of chlorine on common materials in fresh Water. Materials Performance 37(11) (1998) 52-56.
  4. Elansezhian R, Senaidi SAK. Investigation on erosion-corrosion behaviour of gate valve used in main water distribution line of Oman, International Journal of Modern Science and Technology, 1 (2016) 12-16.
  5. El-Dessouky HT, Ettouney HM. Fundamentals of salt water desalination, 1 st edition (2002), Elsevier Science B. V., Amsterdam, Netherland.
  6. Javaherdashti R. Microbiologically influenced corrosion: An engineering insight, 1 st edition (2008), Springer–Verlag London Ltd., London, UK.
  7. Javed MA, McArthur SL, Stoddart PR, Wade SA. Techniques for studying initial bacterial attachment and subsequent corrosion of metals, ACA conference on Corrosion and Prevention, Australia, 2013.
  8. Shah AJ, Bhagchandani GB. Anti corrosive rubber coating. International Journal of Scientific Engineering and Technology 2 (2013) 443-447.
  9. Guan SW. 100% solids polyurethane and polyurea coatings technology: chemistry, selection and applications, The 2 nd China International Corrosion Control Conference, 2002.
  10. Samimi A. Use of polyurethane coating to prevent corrosion in oil and gas pipelines transfer. International Journal of Innovation and Applied Studies 1 (2012) 186-193.