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Evaluation of corrosion in crevices in screw joints
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Corrosion Science.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Utvärdering av spaltkorrosion i skruvförband (Swedish)
Abstract [en]

In this Master of Science thesis screws with different coatings were exposed to an accelerated corrosion test in order to investigate the corrosion development. The test matrix constituted of hexagonal and flange screws (fastened on frames) coated with either zinc/iron (ZnFe) or a flake system of aluminum and zinc (GEOMET). The corrosion results were analyzed by means of X-ray diffraction (XRD). In this study the screws were also crosscut and analyzed by means of FEG-SEM in order to determine the thickness and the elemental content of the surface coating. The result of the corrosion test showed that the screws coated with GEOMET showed a very good corrosion resistance whilst the screws coated with ZnFe failed to fulfill the demands on corrosion resistance of Scania.

Place, publisher, year, edition, pages
2011. , 41 p.
Keyword [en]
Cervice corrosion, Screw joints, Corrosion protection, Atmospheric corrosion, GEOMET
National Category
Corrosion Engineering
Identifiers
URN: urn:nbn:se:kth:diva-40473OAI: oai:DiVA.org:kth-40473DiVA: diva2:441388
Subject / course
Corrosion Science
Educational program
Master of Science in Engineering - Chemical Science and Engineering
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2011-11-28 Created: 2011-09-15 Last updated: 2011-11-28Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • 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