METHOD FOR PRODUCING A PART MADE OF A Y/Y' NICKEL-BASED ALLOY BY HOT FORGING

The invention relates to a method for producing a part made of a nickel-based alloy with a Y/Y' microstructure in which at least one hot-forging step is performed, which method is characterised in that the temperature at which the part is heated in the forging step is maintained within a temper...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LECONTE, Gilbert Michel Marin, FLAGEOLET, Benjamin, FRANCHET, Jean-Michel Patrick Maurice, LE GALL, Clément, FORESTIER, Romain, JANSEN, Yann
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FORGE FURNACES FORGING HAMMERING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing a part made of a nickel-based alloy with a Y/Y' microstructure in which at least one hot-forging step is performed, which method is characterised in that the temperature at which the part is heated in the forging step is maintained within a temperature range lower than the abnormal grain growth temperature range of the alloy, the hot-forging temperature being maintained at a temperature lower than the temperature of the part, the hot-forging temperature being such that the difference compared with the temperature at which the part is heated is less than 250°C and preferably less than 150°C. L'invention propose un procédé de fabrication d'une pièce en alliage base nickel à microstructure /' dans lequel on met en œuvre au moins une étape de forgeage sous outillage de forgeage à chaud, caractérisé en ce que la température de chauffage de la pièce lors de l'étape de forgeage est maintenue dans une gamme de température inférieure au domaine de température d'éclatement de grain de l'alliage, la température d'outillage étant maintenue à une température inférieure à la température de la pièce, ladite température d'outillage étant telle que la différence avec la température de chauffage de la pièce est inférieure à 250°C et préférentiellement inférieure à 150°C.