Understanding the effect of Li and flow velocity on corrosion deposition at 230 °C hydrogenated water

Stefano Cassineri, Andrea Cioncolini, Michele Curioni, Jonathan Morrison, Andrew Banks, Nicholas Stevens, Fabio Scenini*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The effect of flow velocity, pH and lithium concentration on corrosion product deposition in accelerated flow regions was investigated in simulated nuclear reactor primary water using discs containing micro-orifices. The results also showed that a well adhered crystalline deposit formed between 2 and 2.5 ppm lithium, where the zeta potential of stainless-steel specimens is negative and the electrokinetic effects are expected to dominate. Conversely, a loosely adherent deposit driven by the deposition of particulates was formed for lower lithium concentrations.

Original languageEnglish
Article number108588
JournalCorrosion Science
Volume168
DOIs
StatePublished - 15 May 2020
Externally publishedYes

Keywords

  • Corrosion deposition
  • Micro-orifice
  • Micro-fluidic
  • PWR primary water
  • Stainless steel

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