GD-OES and electrochemical study of Ce containing conversion layers of hot dip galvanised and by Sendzimir process continuously hot dip galvanised steel plates

S. Köszegi, I. Felhősi, E. Kálmán

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The present work is focused on the conversion layers of hot dip galvanised and continuously hot dip galvanised steel sheets produced by ISD DUNAFERR, Co., Ltd. The conversion coatings on the galvanised steel plates were produced by dipping the plates into solutions of rare earth salts for different immersion periods. The applied rare earth salts were, cerium nitrate and cerium chloride, respectively. The corrosion resistance of the treated plates was tested by DC polarisation measurements and electrochemical impedance spectroscopic method (EIS). The most promising conversion layers were subjected to special corrosion test modelling the effect of the squeezing of plates or coils during storage and delivering and the humidity, simultaneously. The qualitative properties of the corroded surface were tested by glow discharge optical emission spectroscopy (GD-OES).

Original languageEnglish
Pages (from-to)744-748
Number of pages5
JournalMaterials and Corrosion
Volume59
Issue number9
DOIs
Publication statusPublished - Sep 2008

Fingerprint

Optical emission spectroscopy
cerium
Steel
Glow discharges
Cerium
Rare earths
corrosion
dip
Salts
steel
spectroscopy
salt
Steel sheet
Corrosion resistance
Chlorides
Nitrates
coating
Atmospheric humidity
humidity
polarization

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Environmental Chemistry

Cite this

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