Patent ID: 9035213
Filing Date: 2015-05-19
Classification: B05B,B23K,B23P,C21D,F05B

Abstract:
1. A method for welding a workpieces of a high-temperature superalloy comprising: applying welding filler to a heat input zone of a workpiece surface from a supply zone, the heat input zone formed by application of energy to the workpiece surface; melting the welding filler to form molten welding filler; resolidifying the molten welding filler to form a first resolidified material; moving the heat input zone along with the supply zone and the workpiece surface in relation to one another to apply and melt additional welding filler on the workpiece surface, and resolidifying the molten additional welding filler to form additional resolidified material, wherein the workpiece comprises a γ′-containing nickel-based superalloy, wherein the welding filler materials comprise a γ′-forming nickel-based superalloy material, wherein a mass feed rate for the welding filler materials applied to the workpiece surface is ≦350 mg/min, and wherein at least a welding power and a diameter of the heat input zone are selected such that a cooling rate during resolidifying of the molten welding filler materials is at least 8000 Kelvins per second.