Effects of Solution pH, Sodium Chloride and Amino Acids on the Corrosion of a Steel Plate in Lime Water.

DOI Web Site 20 References

Bibliographic Information

Other Title
  • 水酸化カルシウム飽和水溶液中での鋼板の腐食に及ぼす溶液ｐＨ，塩化物イオンおよびアミノ酸の影響
  • スイサンカ カルシウム ホウワ スイヨウエキ チュウ デ ノ コウハン ノ フショク ニ オヨボス ヨウエキ pH エンカブツ イオン オヨビ アミノサン ノ エイキョウ

Search this article

Description

The galvanic cell current between a steel plate and a platinum wire cathode immersed in oxygenated lime water containing sodium chloride and various amino acids as inhibitors was measured, permitting continuous monitoring and evaluation of corrosive effects of the solution pH and of the efficacy of the corrosion inhibitors.<br>A relation of log[Cl-]=0.41log[OH-]-0.17 was found in a criterion concentration between Cl- and OH- for the onset of pitting corrosion on the steel surface. It was also found that the amino acids functioned as corrosion inhibitors. Especially, the composite additive consisting of DL-glycine and DL-aspartic acid, or of DL-serin and DL-aspartic acid effectively adsorbed on the steel surface and greatly suppressed the pitting corrosion of the steel.

Journal

References(20)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top