Paper Title:

Surface Microstructure of NiCrBSi Coatings Deposited by Flame Spray and Evaluation of the Oxidation Resistance

Periodical Solid State Phenomena (Volume 163)
Main Theme Applied Crystallography XXI
Edited by Danuta Stróż & Małgorzata Karolus
Pages 51-54
DOI 10.4028/www.scientific.net/SSP.163.51
Citation D. Chaliampalias et al., 2010, Solid State Phenomena, 163, 51
Online since June, 2010
Authors D. Chaliampalias, G. Vourlias, Stefanos Skolianos, Efstathios K. Polychroniadis, F. Stergioudis
Keywords Coating, Ni-Based Alloy, Oxidation, Thermal Spraying
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Abstract

In the herein work coatings containing NiCrBSi alloy were deposited on low carbon steel by flame spray technique. The microstructure and morphology of the coatings were examined by electron microscopy and X-ray diffraction analysis. The as sprayed coatings are extremely rough with characteristic lamellic formations and porosity while a nanometer oxide film was formed on the top of the coating. High temperature oxidation tests revealed the high resistance of these coatings when exposed in such environment. This is mostly attributed to the existence of the temperature resistant oxide scale on the surface of the coupons.