caa a22 4500 463190017 CHVBK 20180406164906.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10973-006-8280-0 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8280-0 Zinc coatings for oxidation protection of ferrous substrates [Elektronische Daten] Part I. Macroscopic examination of the coating oxidation [G. Vourlias, N. Pistofidis, K. Chrissafis, G. Stergioudis] The oxidation resistance of ferrous materials at elevated temperatures is limited. For that purpose the performance of zinc coatings deposited with hot-dip galvanizing, pack cementation and thermal spraying was considered. In the present work the oxidation resistance of these coatings at 400°C was estimated with light microscopy, thermogravimetric analysis and X-ray diffraction. From this examination it was deduced that in every coating a scale that was mainly composed of ZnO was formed, while Fe oxides were also detected in galvanized and pack coatings. However, the presence of the Fe/Zn phases inside the galvanized and pack coatings led to the formation of cracks, which could expose the substrate and thus destabilize the coating. This phenomenon was not observed in the thermal sprayed coatings, where the Fe/Zn phases were absent. In any case these cracks are not likely to jeopardize the resistance of the coating because zinc is anodic to steel. Hence, from the above examination it was deduced that the behavior of zinc coatings would be sufficient at 400°C. Springer Science+Business Media, LLC., 2007 coating materials nationallicence oxidation nationallicence thermal analysis nationallicence X-ray diffraction nationallicence zinc nationallicence Vourlias G. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Pistofidis N. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Chrissafis K. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Stergioudis G. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 769-775 1388-6150 90:3<769 2007 90 10973 https://doi.org/10.1007/s10973-006-8280-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8280-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vourlias G. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 700 1- Pistofidis N. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 700 1- Chrissafis K. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 700 1- Stergioudis G. Physics Department, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 769-775 1388-6150 90:3<769 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463189930 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer