METHOD OF HEAT TREATING SUPERALLOY COMPONENT AND ALLOY COMPONENT

PROBLEM TO BE SOLVED: To provide a method of heat treating a superalloy component.SOLUTION: The method of heat treating a superalloy component includes solution heat treating the component at a temperature below γ' solvus temperature to produce a fine grain structure. Insulation is placed over...

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Hauptverfasser:	DAVID ULRICH FURRER, JOSEPH ANDREW LEMSKY, MARK CHRISTOPHER HARDY, ROBERT JOHN MITCHELL
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS ALLOYS BLASTING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of heat treating a superalloy component.SOLUTION: The method of heat treating a superalloy component includes solution heat treating the component at a temperature below γ' solvus temperature to produce a fine grain structure. Insulation is placed over a first area to form a heat insulated assembly. The heat insulated assembly is placed in a furnace at a temperature below the γ' solvus temperature and maintained at that temperature for a predetermined time to achieve a uniform temperature. The temperature is increased at a predetermined rate to a temperature above the γ' solvus temperature to maintain a fine grain structure in a first region, produce a coarse grain structure in a second region and produce a transitional structure in a third region between the first and second regions. The heat insulated assembly is removed from the furnace when the second region has been above the γ' solvus temperature for a predetermined time and/or the first region has reached a predetermined temperature.