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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12128/8927
Title: The microstructure of annealed galfan coating on steel substrate
Other Titles: Mikrostruktura wygrzewanych pokryć cynkowych typu galfan na podłożu stalowym
Authors: Zelechower, M.
Kliś, J.
Augustyn, E.
Grzonka, J.
Stróż, Danuta
Rzychoń, T.
Woźnica, H.
Keywords: zinc coating; galfan; heat treatment; interface; ternary Fe-Al-Zn compounds
Issue Date: 2012
Citation: Archives of Metallurgy and Materials, 2012, iss. 2, s. 517-523
Abstract: The commercially available Galfan coating containing 5-7wt.% of Al deposited on the low carbon steel substrate by hot dipping has been examined with respect to the microstructure of the coating/substrate interface area. The application of several experimental techniques (SEM/EDS, XRD, TEM/AEM/EDS/ED) allowed demonstrating the two-phase structure of the alloy coating in non-treated, commercially available Galfan samples: Zn-rich pre-eutectoid phase grains are surrounded by lamellar eutectics of -Al and -Zn. The transition layer between the alloy coating and steel substrate with the considerably higher Al content (SEM/EDS, TEM/EDS) has been found in both non-treated and annealed samples (600oC/5 minutes). Only the monoclinic FeAl3Znx phase however was revealed in the annealed sample (TEM/electron diffraction) remaining uncertain the presence of the orthorhombic Fe2Al5Znx phase, reported by several authors.
URI: http://hdl.handle.net/20.500.12128/8927
DOI: 10.2478/v10172-012-0054-z
ISSN: 1733-3490
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