The current study reports on modification of conventional welding materials with titanium, boron and silicon to enhance weldability by reducing the solidus temperature and promoting the formation of low temperature eutectics. Melting behavior, weld microstructure, tensile and stress rupture strength are reported for several alloy compositions. Some examples of repairs of IGT and aero HPT blades using the materials and technologies are provided.
Volume Subject Area:
Manufacturing Materials and Metallurgy
Topics:
Gas turbines,
Maintenance,
Nickel,
Superalloys,
Welding,
Alloys,
Blades,
Boron,
Low temperature,
Melting,
Rupture,
Silicon,
Stress,
Temperature,
Titanium
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