The Effectiveness of TiO2 Thermal Barrier Coating in Protecting IN738 LC Super Alloy in an Atmosphere of Sodium Sulfate and Sodium Chloride Vapor at High Temperature

Abstract

Increasing the efficiency of work and extending the life of metal equipment, which operates under very harsh conditions, requires making the best complex changes in its crystalline structure and properties. In many of the properties of this equipment as a result of the formation of multi-layered metal and ceramic layers in the surface construction of the ingot, thus increasing the efficiency of the ingot and extending its life. The aluminizing was carried out in the presence of a thermal barrier yttrium oxide at 1000 oC, and the oxidation kinetics of the coated structures was studied at 1050 oC and in an atmosphere of mixture sodium chloride vapor and sodium sulfate.