Effect of Corrosion on the Tensile Property of Austenised AISI 1040 Steel Exposed to Stagnant Seawater

Abstract:

Corrosion is a major problem all over the world. A lot of researches on corrosion are ongoing all over the world and will continue to go on. This paper investigates the effect of corrosion on the tensile properties of AISI 1040 steel in seawater. The samples were austenised at 830⁰C, 930⁰C, and 1030⁰C, while some were not. The austenised samples were quenched in water and tempered at 500⁰C. The samples were further machined into tensile test specimens and then exposed to stagnant aerated seawater. Two samples each from each austenised temperature were tested using a tensile test machine at every 15-days interval, for a duration of 90 days. Some of the fracture surfaces were examined using scanning electron microscope. The results shows a 25% decrease in tensile strength for as received sample, 20.1% decrease for samples austenised at 830⁰C, 20.9% decrease for samples austenised at 930⁰C and 22.4% decrease for samples austenised at 1030⁰C at the end of the 90^th day.

• Periodical: International Journal of Engineering Research in Africa (Volume 12)
• Pages: 35-41
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.12.35
• Online since: June 2014
• Authors: Unueroh Ufuoma Georgina*, Basil Onyekpe
• Keywords: AISI 1040 Steel, Austenising, Corrosion, Microstructure, Seawater

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