METHOD FOR POST-BUILT HEAT TREATMENT OF ADDITIVELY MANUFACTURED COMPONENTS MADE OF GAMMA-PRIME STRENGTHENED SUPERALLOYS

The invention relates to a method of post-built up heat treatment of an additively manufactured high strength component made of a gamma-prime (.gamma.') strengthened superalloy based on Ni or Co or Fe or combinations thereof. An application of a rapid heating-up rate of 25 to 60 °C/min in a spe...

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Bibliographische Detailangaben
Hauptverfasser:	ETTER, THOMAS, KUENZLER, ANDREAS, ENGELI, ROMAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a method of post-built up heat treatment of an additively manufactured high strength component made of a gamma-prime (.gamma.') strengthened superalloy based on Ni or Co or Fe or combinations thereof. An application of a rapid heating-up rate of 25 to 60 °C/min in a specific temperature range during the first post-built heat treatment after additive manufacturing avoids or at least minimizes the gamma-prime precipitation in the component during heat-up. This results in components/articles that may be crack-free or have reduced cracks compared to significant cracking present in conventionally heat treated components.