INFLUENCE OF STEEL CONTAMINATION IN PETROLEUM PRODUCTS ON FORMATION OF NON-METALLIC INCLUSIONS

1 PALAMARCIUC Ion
Co-authors:
1 GALUSCA Dan Gelu 2 MANHART Jacob 3 OKOLIE Norbert
Institutions:
1 “Gheorghe Asachi” Technical University of Iași, Iași, Romania, EU, palamion@gmail.com, dangalusca@yahoo.com
2 Polymer Competence Center Leoben, Leoben, Austria, EU, jakob.manhart@pccl.at
3 University of Chemical Technology and Metallurgy, Sofia, Bulgaria, EU, norbertokolie@gmail.com
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
816-821
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
141 views / 25 downloads
Abstract

It is generally recognized that the high content of non-metallic inclusions in structural steels alter their physical and mechanical properties. Formation of non-metallic inclusions is a complex phenomenon that depends on the composition, pressure and temperature of the working media. By use of different surface analysis techniques we analysed an austenitic stainless steel pipe that has been contaminated by petroleum products as a result of diffusion and concluded that the liquid medium penetrates relatively far into the metal by adsorptive migration, resulting in formation of chemically active sites that promote the formation of intermetallic compounds. It is important to understand this mechanism as it directly influences corrosion and further failure of the steel, leading to problems that translate into human and economic losses.

Keywords: stainless steel, non-metallic inclusions, corrosion

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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