Corrosion Damage Analysis of Drinking Water Piping

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F25%3AN0000006" target="_blank" >RIV/25870807:_____/25:N0000006 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.37904/metal.2025.5122" target="_blank" >https://doi.org/10.37904/metal.2025.5122</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Corrosion Damage Analysis of Drinking Water Piping
Original language description
The article describes the corrosion attack and premature damage in stainless steel drinking water piping installed in a hospital. After only two years of service, intensive pitting and crevice corrosion was observed near welded joints, resulting in wall perforation. The analyses made on damaged tubes revealed that corrosion attack started in the root parts of weldments due to welding defects, mainly incomplete root penetration, lack of fusion, and inadequate weld root shielding. Such defects formed narrow crevices in which a restricted exchange of ions and electric charge with the environment caused fast and extensive corrosion damage. The presence of chlorine dioxide, used for water disinfection, also played a significant role in the initiation of corrosion, as chlorine or chloride ions disrupt the protective oxidic film on the metal surface and facilitate the penetration of oxygen.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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