POUDRE D'APPORT DE BRASAGE DIFFUSION DE PIECE EN ALLIAGE A BASE DE NICKEL, COBALT OU FER

• Main Authors: MALIE ANDRE, JACQUOT FREDERIC, ETUVE PASCAL, MICHEL CHRISTIAN
• Format: Patent
• Language: French
• Published: 27.06.2003
• Edition: 7
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINE TOOLS; MACHINES OR ENGINES IN GENERAL; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PERFORMING OPERATIONS; POWDER METALLURGY; SOLDERING OR UNSOLDERING; STEAM ENGINES; TRANSPORTING; WEAPONS; WELDING; WORKING BY LASER BEAM; WORKING METALLIC POWDER

A filler powder for the diffusion brazing of a nickel, cobalt or iron based alloy A comprises grains of material of a determined alloy B presenting specific functional properties suitable to the zone of the application component. The grains are generally spherical and carry on their surface encrustations of additions of which the composition incorporates at least one melting element from the boron and silicon group. These encrusted additions are in a free state in the powder. An Independent claim is also included for a compact filler piece for a nickel, cobalt or iron based superalloy, obtained by thermal sintering of a filler powder as above.