Mechanical Properties of Two Layers Thermal Barrier Coating Deposited on a Plate Made of Cobalt Alloy MAR-M509

The manuscript presents a microstructure and mechanical properties of two layers of thermal barrier coating (TBC) deposited on a plate made of cobalt alloy MAR-M509. Based on measurements of microhardness made with Berkovitz’s indenter using Nano Scratch-Tester CSM Instruments, it was stated that elastic (Ee) to total energy (Ec) parameters (MIT=Ee/Ec), γ phase, matrix of alloy MAR-M509 (MITγ), metallic interlayer (45%Ni – 22% Co – 17% Cr – 16% Al – 0,3% Y),(MITM) and ceramic layer (MITZrO2) there are proportion 0,29:0,22:0,50.