Effect of Heat Treatment of the Alumina Powder on the Microstructure and Properties of Coatings
1 Belgorod National Research University, Pobedy 85, Belgorod 308015 Russia
2 Paton Institute of Electric Welding, National Academy of Sciences of Ukraine, Kiev 03650 Ukraine
3 N.N. Semenov Institute of Chemical Physics, RAS, Kosygina 4, Moscow 117977 Russia
The alumina powder was treated at a high temperature (1000°C). Dense (porosity of less than 2%), solid (1280 ± 30 HV0.3) and wear-resistant coatings based on heat-treated alumina powder were obtained by a multi-chamber detonation sprayer on the steel substrate. The microstructure, microhardness and the wear resistance of the alumina coatings were investigated.
© Owned by the authors, published by EDP Sciences, 2015
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