Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Long-term atmospheric corrosion of Zn–5%Al-coated steel and HDG during outdoor worldwide exposures
RISE Research Institutes of Sweden, Materials and Production, Corrosion. (Institut de la Corrosion)ORCID iD: 0000-0001-5462-2700
RISE Research Institutes of Sweden, Materials and Production, Corrosion.ORCID iD: 0000-0003-2042-1235
RISE Research Institutes of Sweden, Materials and Production, Corrosion. (Institut de la Corrosion)
RISE Research Institutes of Sweden, Materials and Production, Corrosion. (Institut de la Corrosion)
Show others and affiliations
2020 (English)In: Corrosion Engineering, Science and Technology, ISSN 1478-422X, E-ISSN 1743-2782, Vol. 55, no 7, p. 520-530Article in journal (Refereed) Published
Abstract [en]

Hot-dipped galvanised (HDG) steel and Zn5Al-coated steel were exposed for 6 years at different atmospheric weathering sites worldwide. The mass loss of the coatings has been measured after 1, 2, 4 and 6 years of exposure. In addition, corrosion products have been determined using scanning electron microscopy, X-ray diffraction and FTIR spectroscopy. It is shown that Zn5Al is better than HDG-steel independently on the exposure duration and location. The mass loss of Zn5Al is also less dependent of the environmental parameters (such as chloride deposition, relative humidity and temperature) than HDG-steel. The ratio of performance after 6 years of exposure varied from 1.3 to 5.1 with the mean value of 3.1. The analyses of the corrosion products indicate the formation of protective Zn/Al - (Formula presented.) layered double hydroxide (LDH) and sulphate-containing corrosion products of Zn and Al after 6 years of exposure. A mechanism explaining the superior properties of Zn5Al is proposed. 

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2020. Vol. 55, no 7, p. 520-530
Keywords [en]
Atmospheric corrosion, FTIR spectroscopy, SEM–EDS, XRD, zinc aluminium alloy coating, zinc coating, Aluminum alloys, Aluminum coated steel, Aluminum coatings, Aluminum corrosion, Atmospheric humidity, Binary alloys, Chlorine compounds, Corrosion protection, Fourier transform infrared spectroscopy, Scanning electron microscopy, Sulfur compounds, Thallium alloys, Weathering steel, Zinc alloys, Al coated steels, Chloride depositions, Corrosion products, Environmental parameter, Exposure durations, Layered double hydroxides, Relative humidity and temperatures, Steel corrosion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-44796DOI: 10.1080/1478422X.2020.1750162Scopus ID: 2-s2.0-85083864343OAI: oai:DiVA.org:ri-44796DiVA, id: diva2:1436492
Available from: 2020-06-08 Created: 2020-06-08 Last updated: 2023-05-16Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Thierry, DominiquePersson, Dan

Search in DiVA

By author/editor
Thierry, DominiquePersson, Dan
By organisation
Corrosion
In the same journal
Corrosion Engineering, Science and Technology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 35 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf