Abstract
Ti-N three-layer vacuum-plasma coatings 50–60-μm thick deposited on VT3- and OT4-alloy turbine compressor blades by a high-energy technology were studied. The gas-abrasive wear resistance of the coatings on VT3 alloy was superior to those on OT4 alloy at 20°C, but inferior at 250°C. The coatings were not susceptible to climatic corrosion. Their cycle-temperature stability were higher on OT4 alloy.
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