Inhibition mechanism of carbon steel in neutral solution by N-phosphono-methyl-glycine

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Corrosion inhibition of carbon steel in neutral aqueous solutions by N-phosphono-methylglycine (NPMG) is based mainly on the formation of an inhibiting film that protects the base metal. In order to understand the structure and composition, the layers formed on carbon steel were sputtered by an argon beam to obtain a depth profile using Auger electron spectroscopy (AES). The influence of changes in the water composition using model solutions (with and without calcium) in contact with carbon steel on the formation and growth rate of the film was studied. In addition, the effect of several factors such as time of contact and the addition of some cations, such as Ca2+ and Zn2+, on the formation and composition of the inhibiting films was investigated. In addition to surface analysis, weight loss method was used to optimize and characterize the inhibitor efficiency and the effect of synergism.

Original languageEnglish
Pages (from-to)1463-1470
Number of pages8
JournalCorrosion Science
Volume35
Issue number5-8
DOIs
Publication statusPublished - 1993

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Glycine
Carbon steel
Amino acids
Chemical analysis
Sarcosine
Argon
Surface analysis
Auger electron spectroscopy
Contacts (fluid mechanics)
Cations
Calcium
Positive ions
Metals
Corrosion
Water

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Inhibition mechanism of carbon steel in neutral solution by N-phosphono-methyl-glycine. / Shaban, A.; Kálmán, E.; Biczó, I.

In: Corrosion Science, Vol. 35, No. 5-8, 1993, p. 1463-1470.

Research output: Contribution to journalArticle

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