Abstract
The age-old problem of fixing a flaw in an airfoil of a vane or bucket that is otherwise serviceable, has been resolved by the careful blending of two known technologies, HVOF (High Velocity Oxy Fuel) and HIP (Hot Isostatic Pressing). This recently patented process facilitates the successful replacement of parent material as to allow a component which would otherwise be taken out of service to be reused in a “like new” condition. HVOF spraying of an airfoil employs the same material as the parent part. This process by itself will not provide sufficient adhesion to cause a complete marriage of materials. HIP’ing completes the union. Resulting “RECAST” repaired components display the same mechanical and physical properties as the parent material.
