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Abstract The paper presents a comprehensive approach to the refurbishment of titanium turbine blades by direct laser deposition. Coatings based on titanium carbide with the introduction of boron carbide and… Click to show full abstract
Abstract The paper presents a comprehensive approach to the refurbishment of titanium turbine blades by direct laser deposition. Coatings based on titanium carbide with the introduction of boron carbide and tungsten carbide particles for airfoil shroud platform and based on the commercially pure Ti with the addition of fine particles of aluminum oxide for the turbine airfoil are proposed. It is shown that large refractory particles with a hardness of 1384 HV0.1 ÷ 5108 HV0.1 are crystallization centers and reinforcing particles, and melting fine particles form high-temperature phases of TiB and Ti3Al in the coating metal with a hardness of 520 HV0.1.
Journal Title: Engineering Failure Analysis
Year Published: 2018
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