Atmospheric corrosion of ZnAlMg coated steel during long term atmospheric weathering at different worldwide exposure sites
| Autor: | Dominique Thierry, Karl Heinz Stellnberger, Dan Persson, Gerald Luckeneder |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology Zinc engineering.material Chloride Corrosion chemistry.chemical_compound symbols.namesake Coating 0202 electrical engineering electronic engineering information engineering medicine General Materials Science Magnesium Metallurgy technology industry and agriculture General Chemistry 021001 nanoscience & nanotechnology Galvanization chemistry engineering Zinc aluminium symbols Carbonate 0210 nano-technology medicine.drug |
| Zdroj: | Corrosion Science. 148:338-354 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2018.12.033 |
| Popis: | The atmospheric corrosion of zinc aluminium magnesium (ZnAlMg) coated steel was studied in a worldwide exposure in Europe, East Asia and USA. The mass loss of ZnAlMg coated steel was about 2–3 times lower compared to hot dipped galvanised steel (HDG) after 4 years exposure. The corrosion of ZnAlMg coated steel was highly localised with selective corrosion attacks in the eutectic phases of the coating. Sulfate and chloride containing corrosion products were formed in the corrosion pits while zinc hydroxy carbonate and carbonate containing layered doubly hydroxides (LDH) formed mainly in the outer parts of corrosion attacks. |
| Databáze: | OpenAIRE |
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