Corrosion of hot‐dip‐galvanised steel and zinc alloy‐coated steel in ammonia and ammonium chloride

There are many potential causes of corrosion in animal buildings. Animals exhale large quantities of moisture into the air creating high relative humidity in the building if the moisture is not properly vented. High humidity increases the potential for condensation. In addition, ammonia may be found...

Full description

Saved in:
Bibliographic Details
Published in:Materials and corrosion 2020-07, Vol.71 (7), p.1118-1124
Main Authors: Thierry, Dominique, Le Bozec, Nathalie, Persson, Dan
Format: Article
Language:English
Subjects:
Alloy coated steel
Alloy steel
Aluminum
Aluminum coated steel
Aluminum corrosion
Ammonia
Ammonium chloride
Animal buildings
Animals
Atmospheric corrosion
Atmospheric humidity
Buildings
Chloride
Chlorides
Chlorine compounds
Corrosion potential
Corrosion tests
Fertilizers
Galvanised steel
Galvanized steels
Galvanizing
High humidity
High relative humidities
Hot dips
hot-dip-galvanised steel
Humidity
Immersion coating
Levels
Magnesium
Moisture
Nitrogen sources
Relative humidity
Stadiums
Steel corrosion
zinc
Zinc alloys
Zinc base alloys
Zinc coatings
zinc–aluminium–magnesium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:There are many potential causes of corrosion in animal buildings. Animals exhale large quantities of moisture into the air creating high relative humidity in the building if the moisture is not properly vented. High humidity increases the potential for condensation. In addition, ammonia may be found in large quantities in animal buildings. Ammonia is released from manure and urine. In addition, ammonium chloride is used as a nitrogen source in fertilisers. In this study, the atmospheric corrosion of hot‐dip‐galvanised steel and zinc alloy‐coated steel such as zinc–aluminium and zinc–aluminium–magnesium has been studied in atmospheres containing different levels of ammonia. Investigations have also been conducted at different levels of ammonium chloride. The results are discussed in view of the mechanisms of corrosion of zinc and zinc alloy‐coated steel in ammonia and ammonium chloride‐containing environments. The atmospheric corrosion of zinc, hot‐dip‐galvanised steel and zinc alloy‐coated steel have been studied in NH3 gas and in the presence of NH4Cl salts. These conditions are highly relevant to the agricultural industry. An important decrease in the corrosion rate of Z600 was noticed with NH4Cl compared to NaCl
ISSN:0947-5117
1521-4176
1521-4176
DOI:10.1002/maco.201911402