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In-situ studies of the initial atmospheric corrosion of iron
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0003-1631-4293
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-9453-1333
2002 (English)In: OUTDOOR ATMOSPHERIC CORROSION, 2002, Vol. 1421, 127-138 p.Conference paper, Published paper (Other academic)
Abstract [en]

A unique experimental setup has been developed with the intent to provide molecular information during initial atmospheric corrosion of the iron surface. Infrared reflection absorption spectroscopy (IRAS) and quartz crystal microbalance (QCM) have been integrated into one surface analytical system. The results show that an aqueous adlayer of constant mass was physisorbed on the surface at a given relative humidity. The aqueous adlayer was found to be thicker when compared to previous studies performed on copper. A linear relationship between mass change and the intensity of the water absorption band at 3400 cm(-1) (IRAS) was found when altering the relative humidity. At high relative humidity a thick aqueous adlayer was formed, whereby an absorbance band at 1100 cm(-1) was observed that disappeared when dry air was introduced. When introducing SO2 and O-3 in the sub-ppm range, the formation of sulfate surface species could be monitored quantitatively with monolayer sensitivity and a significant increase in reaction kinetics could be discerned.

Place, publisher, year, edition, pages
2002. Vol. 1421, 127-138 p.
Series
AMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION, ISSN 1040-1695
Keyword [en]
iron; IRAS; QCM; O-3; SO2; corrosion; in-situ; AFM; SEM
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-49048DOI: 10.1520/STP10888SISI: 000180883000010OAI: oai:DiVA.org:kth-49048DiVA: diva2:459136
Conference
Symposium on Outdoor Atmospheric Corrosion. PHOENIX, AZ. MAY 08-09, 2001
Note
QC 20111128Available from: 2011-11-24 Created: 2011-11-24 Last updated: 2011-11-28Bibliographically approved

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Weissenrieder, JonasLeygraf, Christofer

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