Change search
ReferencesLink to record
Permanent link

Direct link
Corrosion of zinc in the automotive environment ‐ Relation Between Corrosion Rate, Corrosion Products and Exposure Site
KTH, School of Chemical Science and Engineering (CHE).
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In a previous project, mobile exposures in road environments have been performed in

various areas of the world. A number of materials and coatings have been attached under

trailers which travels long distances in different types of road environments. One of the

materials, zinc, demonstrated various corrosion rates in different parts of the world. In this

investigation two various accelerated corrosion tests have been performed at the laboratory

of Swerea Kimab in order to realize parameter influence on zinc. Even though the corrosion

rates are known, the relation to formed corrosion products has not been investigated

earlier. In the present study, corrosion products on zinc have been analyzed using XRD and

FTIR. The results from analyses of formed corrosion products have been evaluated together

with measured corrosion rates, both from the mobile exposure and the accelerated tests, in

order to try to understand under what conditions certain corrosion products are formed and

how it affects the corrosion rate.

A cold humid climate was found to be the most corrosive. In these environments, de


salts are used which promotes formation of Simonkolleite and in a subsequent step;

Gordaite (if there is a not negligible deposition rate of SO2/SO42‐) which is often observed as the end product in marine environments.

Place, publisher, year, edition, pages
2012. , 55 p.
Keyword [en]
zinc, atmospheric corrosion, automotive environment, de‐icing salt, corrosion products
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-158494OAI: diva2:777202
Available from: 2015-01-08 Created: 2015-01-08 Last updated: 2015-01-08Bibliographically approved

Open Access in DiVA

fulltext(2416 kB)216 downloads
File information
File name FULLTEXT01.pdfFile size 2416 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Chemical Science and Engineering (CHE)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 216 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 323 hits
ReferencesLink to record
Permanent link

Direct link