FIELD: welding processes and equipment, namely diffusion welding of laminate structures of titanium alloys, mainly structures with curvilinear profile, possibly used for producing heat exchangers of power plants.
SUBSTANCE: method comprises steps of nitriding outer surface of welded parts during diffusion welding process for creating nitride layer no more than 1 micrometer while creating welding pressure by means of active medium containing mixture of nitrogen, 1 mass%, and argon, 99 mass%.
EFFECT: possibility for preventing formation of fragile nitride layers on outer surfaces of structure during diffusion welding process.
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