Skip to content
Research Article Open access CC BY 3.0

Inhibition of Pitting Corrosion of Some Austenitic Stainless Steel Samples in 2.5 M Nacl Solution by 3- Amino-1, 2, 4-Triazole

Magdy A. M. Ibrahim, S. S. Abd El Rehim, M. M. Hamza

Physical Science International Journal · pp. 940–953 · Published 27 May 2014

10.9734/PSIJ/2014/10528

Abstract

The effect of addition of 3-AMINO-1,2,4-TRIAZOLE (ATA) on general and pitting corrosion of three Egyptian austenitic stainless steel samples, namely SS 304L (0.09 Mo), SS 304H (0.43 Mo) and SS 304H (1.15 Mo) in aerated 2.5 M NaCl solution was investigated. The measurements were carried out using potentiodynamic polarization and the Tafel lines methods. The influence of temperature on the inhibition properties of ATA was investigated. The results indicate that ATA is a good inhibitor for the samples under investigation in 2.5 M NaCl solutions. In addition, the inhibition efficiency η% increases with the inhibitor concentration while it decreases with increasing temperature. Moreover, addition of ATA to 2.5 M NaCl solution leads to a shift of the pitting potential towards the noble direction accounting for increased resistance to pitting attack. The inhibitive properties of the ATA were explained on the bases of its adsorption on the stainless steel samples and formation of adsorbed barrier layer, which resist the penetration power of Cl- ion and consequently decreases the rate of pitting corrosion. The adsorption of the inhibitor obeys a Temkin adsorption isotherm. Examination of polarization curves indicates that ATA acts as a mixed-type inhibitor.  

Pitting corrosion stainless steel 3-amino-1, 2, 4-triazole tafel lines temkin

References (21)

  1. 1 The corrosion inhibition of mild steel in acidic media by a new triazole derivative [DOI]
  2. 2 Corrosion behavior of some austenitic stainless steels in chloride environments [DOI]
  3. 3 Corrosion Inhibition of Carbon Steel by Imidazolium and Pyridinium Cations Ionic Liquids in Acidic Environment [DOI]
  4. 4 Electrochemical behaviour of passive films on molybdenum-containing austenitic stainless steels in aqueous solutions [DOI]
  5. 5 Effect of Mo species on metastable pitting of Fe18Cr alloys—A current transient analysis [DOI]
  6. 6 Effects of Alloying Additions on Corrosion and Passivation Behaviors of Type 304 Stainless Steel [DOI]
  7. 7 Passivity and passivity breakdown of 304 stainless steel in alkaline sodium sulphate solutions [DOI]
  8. 8 Corrosion and inhibition of stainless steel pitting corrosion in alkaline medium and the effect of Cl− and Br− anions [DOI]
  9. 9 The effect of some sulphur compounds on the pitting corrosion of type 304 stainless steel [DOI]
  10. 10 The inhibitive effect of bipyrazolic derivatives on the corrosion of steel in hydrochloric acid solution [DOI]
  11. 11 Effects of hydrogen and tensile stress on the breakdown of passive films on type 304 stainless steel [DOI]
  12. 12 Corrosion Inhibition Performance of 3,5-Diamino-1,2,4-triazole for Protection of Copper in Nitric Acid Solution [DOI]
  13. 13 Corrosion inhibition of Al–B4C metal matrix composites in a NaCl solution by benzotriazole [DOI]
  14. 14 Photoelectrochemical study of passive films on stainless steel in neutral solutions [DOI]
  15. 15 Corrosion inhibition of steel in sulphuric acid by pyrrolidine derivatives [DOI]
  16. 16 Inhibition effect of hexadecyl pyridinium bromide on the corrosion behavior of some austenitic stainless steels in H2SO4 solutions [DOI]
  17. 17 Corrosion inhibition and adsorption properties of 3-amino-1,2,3- triazole on mild steel in H3PO4
  18. 18 Attachment of Listeria monocytogenes to an Austenitic Stainless Steel after Welding and Accelerated Corrosion Treatments [DOI]
  19. 19 Corrosion Inhibition in Chloride Solutions of Iron by 3-Amino-1,2,4-triazole-5-thiol and 1,1’-Thiocarbonyldiimidazole [DOI]
  20. 20 Corrosion of stainless steels [DOI]
  21. 21 Handbook of Stainless Steels [DOI]

Cited by 4

Showing 2 of 4 known citations — external sources report more than can currently be individually listed.

Article metrics

Real usage data collected on this platform.

54

Page views

0

PDF downloads

24

Outbound clicks

4

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.