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.
|Translated title of the contribution||Corrosion investigation of the heat exchangers in the Hungarian nuclear power plant. Part I. General corrosion state and morphology|
|Number of pages||6|
|Publication status||Published - Jan 1 2003|
ASJC Scopus subject areas
- Chemical Engineering(all)
- Surfaces, Coatings and Films
- Materials Chemistry