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

doi:10.1016/j.corsci.2020.108588

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

University of Cambridge

Research output: Contribution to journal › Article › peer-review

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 language	English
Article number	108588
Journal	Corrosion Science
Volume	168
Early online date	6 Mar 2020
DOIs	https://doi.org/10.1016/j.corsci.2020.108588
Publication status	Published - 15 May 2020

Keywords

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

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10.1016/j.corsci.2020.108588Licence: CC BY

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

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.",

keywords = "Corrosion deposition, PWR primary water, Stainless steel, Micro-oriﬁce, Micro-ﬂuidic",

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T1 - Understanding the effect of Li and flow velocity on corrosion deposition at 230 °C hydrogenated water

AU - Cassineri, Stefano

AU - Cioncolini, Andrea

AU - Curioni, Michele

AU - Morrison, Jonathan

AU - Banks, Andrew

AU - Stevens, Nicholas

AU - Scenini, Fabio

PY - 2020/5/15

Y1 - 2020/5/15

N2 - 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.

AB - 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.

KW - Corrosion deposition

KW - PWR primary water

KW - Stainless steel

KW - Micro-oriﬁce

KW - Micro-ﬂuidic

U2 - 10.1016/j.corsci.2020.108588

DO - 10.1016/j.corsci.2020.108588

M3 - Article

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VL - 168

JO - Corrosion Science

JF - Corrosion Science

M1 - 108588

ER -

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

Abstract

Keywords

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