ASSEMBLING TITANIUM AND STEEL PARTS BY DIFFUSION WELDING

A method of assembling together titanium parts and steel parts by diffusion welding, the method interposing two thin layers of niobium or vanadium and copper respectively between a titanium part and a steel part, evacuating the assembly of parts and interposed metal layers, and subjecting the assemb...

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Bibliographische Detailangaben
Hauptverfasser: FIRMIN CAMILLE JEAN LESCURE XAVIER, GILLIA OLIVIER, RICCETTI BRUNO, COUTURIER RAPHAEL, FERTE JEAN-PIERRE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of assembling together titanium parts and steel parts by diffusion welding, the method interposing two thin layers of niobium or vanadium and copper respectively between a titanium part and a steel part, evacuating the assembly of parts and interposed metal layers, and subjecting the assembly to hot isostatic compression at a temperature lying in a range 900° C. to 950° C. and at a pressure lying in a range 1000 bars to 1500 bars for about two hours. The method can be applied to fabricating turbine shafts for turbomachines.