Effects of Soil Physical Properties to the Corrosion of Underground Pipelines

Abstract:

Corrosion of metals in soil be able to change from comparatively fast material loss to insignificant effects, depending on soil environment. Corrosion is a process of deterioration of metal surfaces degraded into another compound. Soil is one of the medium known to have constituted to corrosion of metals. The soil creates an environment for the corrosion to react. The buried pipelines are exposed to the soil that may experience corrosion attack. The study of the soil as corrosion environment is important to mitigate the problem due to the environment and economy. There are factors that contribute to the corrosion process. This study concentrates on corrosion properties that expose to soil environment particularly underground pipelines. The mild steel coupons taken from actual pipelines, stimulating and analyzing the physic-chemical characteristics of the soil environment. The soil is sandy clay in natural. A total summed index of 2 numerical scale, thus, indicates that the soil tested was mildly to non-corrosive. The corrosion rate increase with increasing of moisture content and pH value. The observations on the coupon surface also did in order to study the morphology.

• Periodical: Materials Science Forum (Volume 840)
• Pages: 309-314
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.840.309
• Online since: January 2016
• Authors: Siti Rumaisha Ahmad Saupi, Nur Ain Haris Abdul Haris, Mohamad Najmi Masri*, Muhammad Azwadi Sulaiman, Mohamad Bashree Abu Bakar, Mohd Hazim Mohamad Amini, Mazlan Mohamed, Nik Alnur Auli Nik Yusuf
• Keywords: Corrosion, Moisture, Pipelines, Soil

References

[1] G. Doyle, M.V. Seica, and M.W. Grabinsky, The role of soil in the external corrosion of cast iron water mains in Toronto, Canada. Can. geotech. J. 40(2) (2003) 225-236.

DOI: 10.1139/t02-106

[2] N. Cooper, The use of GIS to develop a probability-based trunk mains burst risk model. Urban Water, 2(2) (2000) 97-103.

DOI: 10.1016/s1462-0758(00)00047-9

[3] Y. Kleiner, and B. Rajani, Forecasting variations and trends in water-main breaks. J. Infrastruct. Syst. 8(4) (2002) 122-131.

DOI: 10.1061/(asce)1076-0342(2002)8:4(122)

[4] S. Pauleit, R. Ennos, and Y. Golding, Modeling the environmental impacts of urban land use and land cover change—a study in Merseyside, UK. Landscape and urban planning, 71(2) (2005) 295-310.

DOI: 10.1016/s0169-2046(04)00083-0

[5] I. Cole, and D. Marney, The science of pipe corrosion: A review of the literature on the corrosion of ferrous metals in soils. Corros. sci. 56 (2012) 5-16.

DOI: 10.1016/j.corsci.2011.12.001

[6] A. Benmoussa, M. Hadjel, and M. Traisnel, Corrosion behavior of API 5L X‐60 pipeline steel exposed to near‐neutral pH soil simulating solution. Mater. Corros. 57(10) (2006) 771-777.

DOI: 10.1002/maco.200503964

[7] F. Caleyo, et al., Probability distribution of pitting corrosion depth and rate in underground pipelines: A Monte Carlo study. Corros. Sci. 51(9) (2009) 1925-(1934).

DOI: 10.1016/j.corsci.2009.05.019

[8] H. El Hajj, et al., Corrosion of carbon steel under sequential aerobic–anaerobic environmental conditions. Corros. Sci. 76 (2013) 432-440.

DOI: 10.1016/j.corsci.2013.07.017

[9] Y. El Mendili, et al., The effect of temperature on carbon steel corrosion under geological conditions. Appl. Geochem. 52 (2015) 76-85.