TECHNOLOGIES
Comparison of corrosion resistance of traditional and modern alternative pipeline steel
- 1 Technical University of Košice, Slovakia Faculty of Mechanical Engineering, Department of Mechanical Engineering Technologies and Materials
Abstract
The paper presents results of research aimed at comparing selected properties of two types of pipe steels, conventional 17G1S-U steel and alternative S960QL steel. The steels were compared in terms of their chemical composition, microstructure, hardness and corrosion resistance. Static electrochemical corrosion tests were performed on the materials, namely electrochemical impedance spectroscopy (PEIS) and linear polarization (LP) in two electrolytes. The results show different chemical composition and microstructure of materials. 17G1S-U steel has a row-like ferritic-pearlitic structure with a hardness of 200 HV 0.1. S960QL steel has a martensitic structure with a hardness of 353 HV 0.1. Steels showed very close corrosion rate in both electrolytes.
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References
- M. Polutrenko, P. Maruschak, A. Tymoshenko, A. Sorochak, Koroze a ochrana materiálu 62, 2 (2018), 65-70, https://doi.org/10.1515/kom-2018-0009
- M. Polutrenko, P. Maruschak, O. Prentkovskis, A. Tymoshenko, O. Maruschak (2019) Impact of Sulfate Reducing Bacteria on Biocorrosion of Pipeline Steels. In: I. Kabashkin, I. Yatskiv (Jackiva), O. Prentkovskis (eds), Reliability and Statistics in Transportation and Communication. RelStat 2018. Lecture Notes in Networks and Systems, vol 68. Springer, Cham
- E. Janoško, Study of electrochemical properties of pipe steels, Diploma thesis, TU Košice, 2019.
- I.M. Gadala, A. Alfantazi, Corrosion Science 82 (2014), 45– 57, http://dx.doi.org/10.1016/j.corsci.2013.12.020
- A.P. Shapovalov et al., Metallurgist 28 (1984), 354–356, https://doi.org/10.1007/BF00737952
- P.O. Maruschak et al., Strength Mater. 51, (2019), 418–426. https://doi.org/10.1007/s11223-019-00088-3