Gözfejlestö hoátadó csövek korróziós állapotfelmérése I. Általános korróziós állapot és morfológia

Translated title of the contribution: Corrosion investigation of the heat exchangers in the Hungarian nuclear power plant. Part I. General corrosion state and morphology

K. Varga, Z. Németh, Andrea Szabó, Krisztián Radó, Dezsö Oravetz, Péter Tilky, János Schunk

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Systematic corrosion investigations of the heat exchanger tubes from 16 different steam generators of the Hungarian power plant were performed. The passivity of the stainless steel tube specimens was studied on the inside surface by voltammetry. The morphology and chemical composition of the oxide-layer formed on the surface were analysed by SEM-EDX methods. On the basis of the measured corrosion characteristics (corrosion rate, thickness and chemical composition of the protective oxide-layer) the steel tube samples can be classified into three groups. Presumably the chemical decontamination of the heat exchanger tubes, performed by the AP-CITROX process, exerts detrimental effect on the corrosion state of the steel tubes.

Original languageHungarian
Pages (from-to)71-76
Number of pages6
JournalKorrozios Figyelo
Volume43
Issue number3
Publication statusPublished - 2003

Fingerprint

Nuclear power plants
Heat exchangers
Tubes (components)
Steel
Corrosion
Oxides
Decontamination
Stainless Steel
Steam generators
Voltammetry
Corrosion rate
Chemical analysis
Energy dispersive spectroscopy
Power plants
Stainless steel
Scanning electron microscopy

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Gözfejlestö hoátadó csövek korróziós állapotfelmérése I. Általános korróziós állapot és morfológia. / Varga, K.; Németh, Z.; Szabó, Andrea; Radó, Krisztián; Oravetz, Dezsö; Tilky, Péter; Schunk, János.

In: Korrozios Figyelo, Vol. 43, No. 3, 2003, p. 71-76.

Research output: Contribution to journalArticle

Varga, K. ; Németh, Z. ; Szabó, Andrea ; Radó, Krisztián ; Oravetz, Dezsö ; Tilky, Péter ; Schunk, János. / Gözfejlestö hoátadó csövek korróziós állapotfelmérése I. Általános korróziós állapot és morfológia. In: Korrozios Figyelo. 2003 ; Vol. 43, No. 3. pp. 71-76.
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