Automatic Welding, 2019, №10



2019 №10 (06)

DOI of Article 10.15407/as2019.10.07

2019 №10 (01)

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Avtomaticheskaya Svarka (Automatic Welding), #10, 2019, pp. 54-61

Vacuum diffusion welding of γ-TiAl intermetallic with high-temperature nickel alloy with application of intermediate Al/Ni nanolayers

Iu.V. Falchenko, L.V. Petrushynets, T.V. Melnichenko, A.I. Ustinov, V.E. Fedorchuk

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03680, Kyiv. E-mail: office@paton.kiev.ua

Effect of structural characteristics and chemical composition of intermediate nanolayers based on Al-Ni system on formation of joints of γ-TiAl based alloy and high-temperature nickel alloy in vacuum diffusion welding was studied. It is shown that application of nanolayered clad interlayers ensures formation of a diffusion zone with monotonic change of the content of components, where the phase composition and micromechanical characteristics are determined by the interlayer chemical composition, as well as lowers the probability of brittle phase formation in the butt joint. 19 Ref., 6 Tabl., 7 Fig.
Keywords: vacuum diffusion welding, intermetallics, nanolayered interlayers

Published: 02.10.2019
Received: 10.07.2019

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