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Effect of Thermal Shock During Legionella Bacteria Removal on the Corrosion Properties of Zinc-Coated Steel Pipes
Abstract
The purpose of this investigation was to conduct the failure analysis of a water-supply system made from zinc-coated steel. The observed corrosion process had an intense and complex character. The brownish deposits and perforations were present after 2-3 years of exploitation. The electrochemical study based on the Tafel polarization, corrosion potential monitoring, and electrochemical impedance spectroscopy together with microscopic analysis via SEM and EDX were performed in order to identify the cause of such intense corrosion. The performed measurements allowed us to determine that thermal shock was the source of polarity-reversal phenomenon. This process had begun the corrosion of steel which later led to the formation of deposits and perforations in the pipes. The work includes appropriate action in order to efficiently identify the described corrosion threat.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
no. 25,
edition 7,
pages 2711 - 2719,
ISSN: 1059-9495 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Orlikowski J., Ryl J., Jażdżewska A., Krakowiak S.: Effect of Thermal Shock During Legionella Bacteria Removal on the Corrosion Properties of Zinc-Coated Steel Pipes// JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE. -Vol. 25, iss. 7 (2016), s.2711-2719
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s11665-016-2103-7
- Verified by:
- Gdańsk University of Technology
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