Gozfejleszto hoátadó csövek korróziós állapotának tematikus vizsgálata, I. Általá nos korróziós állapot és morfológia

Translated title of the contribution: Comprehensive investigation of the corrosion state of the heat exchanger tubes of steam generators, Part I. General corrosion state and morphology

K. Varga, Z. Németh, Andrea Szabó, Dezso Oravetz, Péter Tilky, János Schunk

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In the present work, systematic investigation of the general corrosion state of the heat exchanger tubes originating from 11 different steam generators of the Paks NPP was performed. While the passivity of the inside surface of the stainless steel tube specimens was studied by voltammetry, the morphology and chemical composition of the oxide-layer formed on the surface were analyzed by SEM-EDX methods. Based on the measured corrosion characteristics (corrosion rate, thickness and chemical composition of the protective oxide-layer) the steel tube samples can be classified into two sub-groups. It is assumed that the chemical decontamination of the heat echanger tubes does exert a detrimental effect on the corrosion state of the steel surfaces.

Original languageHungarian
Pages (from-to)444-448
Number of pages5
JournalMagyar Kemiai Folyoirat, Kemiai Kozlemenyek
Volume108
Issue number10
Publication statusPublished - Oct 2002

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Tubes (components)
Steam generators
Steel
Corrosion
Oxides
Decontamination
Stainless Steel
Voltammetry
Corrosion rate
Chemical analysis
Energy dispersive spectroscopy
Scanning electron microscopy

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Gozfejleszto hoátadó csövek korróziós állapotának tematikus vizsgálata, I. Általá nos korróziós állapot és morfológia. / Varga, K.; Németh, Z.; Szabó, Andrea; Oravetz, Dezso; Tilky, Péter; Schunk, János.

In: Magyar Kemiai Folyoirat, Kemiai Kozlemenyek, Vol. 108, No. 10, 10.2002, p. 444-448.

Research output: Contribution to journalArticle

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