Localized corrosion attack on the galvanised steel pipes of the fire protection system-Reference-Cited by-同舟云学术

Localized corrosion attack on the galvanised steel pipes of the fire protection system

Published:2024-03-01 Issue:1 Volume:68 Page:28-42
ISSN:1804-1213
Container-title:Koroze a ochrana materiálu
language:en
Short-container-title:

Author:

Košťúr R.¹,Kouřil M.²

Affiliation:

1. Institute of Inorganic Technologies and Materials , Slovak University of Technology , Radlinského 9 , Bratislava , Slovakia

2. Department of Metals and Corrosion Engineering , University of Chemistry and Technology Prague , Technická 5, 166 28 Praha 6 – Dejvice , Czech Republic

Abstract

Abstract Galvanised steel serves as a base material for pipelines in fire protection systems. However, this system is known for its occasional corrosion failures. The Systems with residual water and oxygen access contribute to formation of macrocells due to different aeration, which can lead to severe damage of the pipes. The aim of this work was to investigate the cause of localized corrosion on the galvanised pipes designated for the fire protection system. The results proved that the main cause of the fire protection pipe system was the residual water in the pipe. The influence of differential aeration on the corrosion of zinc and steel was studied by resistometric technique and showed no effect on the failure of material.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/kom-2024-0004

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