SYMPOSIA PAPER Published: 01 January 1995

Corrosion Study of Carbon Steel and Zinc-Comparison Between Field Exposure and Accelerated Tests


The results from accelerated atmospheric corrosion test methods do not generally correspond very well to corrosion behaviour under practical conditions. The aim of the present investigation is to increase the understanding of the influence of temperature, wetness and sulfur dioxide concentration in the air. Special attention is given to the extent to which results from accelerated tests differ from the results of outdoor exposures.

Carbon steel and zinc have been exposed outdoors at four different test sites and to climate chamber test procedures. The study includes corrosion attack measured as mass loss of test plates and corrosion product characterization by x-ray diffraction.

The investigation shows that studying corrosion with regard to both mass loss and corrosion products formed during climate chamber exposures and field exposures, valuable knowledge is obtained about improvements of accelerated test methods.

Author Information

Johansson, E
Swedish Corrosion Institute, Stockholm, Sweden
Gullman, J
Swedish Corrosion Institute, Stockholm, Sweden The Central Board of National Antiquities and the National Historical Museums, Stockholm, Sweden
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Developed by Committee: G01
Pages: 240–256
DOI: 10.1520/STP14923S
ISBN-EB: 978-0-8031-5302-8
ISBN-13: 978-0-8031-2015-0