Special features of diffusion welding of EP975 creep-resisting alloy and VKNA-4U cast single-crystal intermetallic alloy for blisk structures

The problem of producing high-strength permanent joints in dissimilar alloys, VKNA-4U single-crystal intermetallic alloy and EP975 deformed nickel creep-resisting alloy, is discussed. The processes, taking place during diffusion welding, and the behaviour of alloying elements of the brazing alloys a...

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Bibliographic Details
Published in:Welding International 2014-07, Vol.28 (7), p.562-567
Main Authors: Lukin, V.I., Rylnikov, V.S., Afanasyev-Khodykin, A.N., Timofeyeva, O.B.
Format: Article
Language:English
Subjects:
Blisks
Braze welding
Brazed joints
Brazing
Brazing alloys
Deformation
deformed alloy
diffusion brazing
Diffusion welding
Heat resisting alloys
High strength alloys
intermetallic alloy
Intermetallics
Metals creep
monocrystal alloy
Nickel base alloys
Single crystals
solder
Welding
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Summary:The problem of producing high-strength permanent joints in dissimilar alloys, VKNA-4U single-crystal intermetallic alloy and EP975 deformed nickel creep-resisting alloy, is discussed. The processes, taking place during diffusion welding, and the behaviour of alloying elements of the brazing alloys and brazed materials in the brazed joint and the weld zone are investigated.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2013.840043