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dc.contributor.authorSaarimaa, Ville
dc.contributor.authorMarkkula, Antti
dc.contributor.authorArstila, Kai
dc.contributor.authorManni, Jere
dc.contributor.authorJuhanoja, Jyrki
dc.date.accessioned2017-11-28T10:59:50Z
dc.date.available2017-11-28T10:59:50Z
dc.date.issued2017
dc.identifier.citationSaarimaa, V., Markkula, A., Arstila, K., Manni, J., & Juhanoja, J. (2017). Effect of Hot Dip Galvanized Steel Surface Chemistry and Morphology on Titanium Hexafluoride Pretreatment. <em>Advances in Materials Physics and Chemistry</em>, 7 (2), 28-41. <a href="https://doi.org/10.4236/ampc.2017.72004">doi:10.4236/ampc.2017.72004</a>
dc.identifier.otherTUTKAID_75832
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/56030
dc.description.abstractTitanium hexafluoride pretreatments are known to improve paint adhesion and function as a barrier between the coating and the hot dip galvanized (HDG) steel surface. Interactions at the zinc/pretreatment interface are of utmost importance for the formation of pretreatment layers and the corrosion resistance of color coated hot dip galvanized steels. Removal rate of inert aluminum oxide from HDG steel samples by chemical dissolution was studied. XPS measurements showed that the surface Al2O3 layer thickness decreased rapidly already at mild alkaline cleaning, while complete removal of Al required severe etching. Low reactivity of an Al2O3-rich surface was confirmed by impaired formation of a titanium hexafluoride pretreatment layer. Grain boundaries and deformation twinnings were shown to be of importance for the reactivity of the HDG surface and for the precipitation of the pretreatment chemical. Helium ion microscopy images and electron probe microanalysis (EPMA) of a pretreated sample showed accumulation of the pretreatment chemical at the grain boundaries. Al removal rate was fast at the deformation twinnings at the grain plateaus. Slow Al removal was observed at dendritic valleys and grain boundaries. The results increase understanding of the reactivity of hot dip galvanized steel surface.
dc.language.isoeng
dc.publisherScientific Research Publishing
dc.relation.ispartofseriesAdvances in Materials Physics and Chemistry
dc.subject.otherhot dip galvanized steel
dc.subject.otheraluminum oxide
dc.subject.otherpretreatment, surface morphology
dc.subject.otherhelium ion microscopy
dc.titleEffect of Hot Dip Galvanized Steel Surface Chemistry and Morphology on Titanium Hexafluoride Pretreatment
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201711234349
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-11-23T10:15:17Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange28-41
dc.relation.issn2162-531X
dc.relation.volume7
dc.type.versionpublishedVersion
dc.rights.copyright© 2017 by Authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.4236/ampc.2017.72004


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© 2017 by Authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).
Except where otherwise noted, this item's license is described as © 2017 by Authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).