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EXPERIMENTAL STUDY OF THE SURFACE PROPERTIES OF SELECTED STEELS

1 Řeháčková Lenka
Co-authors:
1,2 Rosypalová Silvie 1 Dudek Rostislav 1,2 Smetana Bedřich 1,2 Zlá Simona 1,2 Dobrovská Jana
Institutions:
1 Faculty of Metallurgy and Materials Engineering, VŠB-Technical University of Ostrava, Ostrava, Czech Republic, EU, lenka.rehackova@vsb.cz
2 Regional material science and technology centre, VŠB-Technical University of Ostrava, Ostrava, Czech Republic, EU
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
216-221
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
417 views / 158 downloads
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Abstract

The surface tension of selected real steel grades and their wetting with alumina substrate in the temperature interval from the melting point to the temperature of 1600 °C were determined using the sessile drop technique. The effect of the major elements (carbon and chromium) on the surface properties of given steels was studied. Carbon and chromium contents were varied in the range of 0.077 - 0.411 wt. % and 0.046 -12.392 wt. %, respectively. It was shown that with an increasing content of both aforementioned components increased the surface tension of the investigated steels. The temperature dependencies of surface tension exhibit a steeper decrease at higher chromium contents. The contact angle of liquid steels with alumina substrate increased with increasing chromium content in the samples.

Keywords: sessile drop method, surface tension, wetting angle, steels

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