2020 №02 (02) DOI of Article
2020 №02 (04)

Electrometallurgy Today 2020 #02
SEM, 2020, #2, 18-22 pages

Producing large-sized ingots of titanium aluminides by EBM method

S.V. Akhonin1, A.Yu. Severin1, V.O. Berezos1, O.M. Pikulin1, O.I. Glukhenkii2, O.I. Bondar2
1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2Institute of Electrodynamics of the NAS of Ukraine. 57 Peremohy Ave., 03057, Kyiv, Ukraine. E -mail: gai56@ied.org.ua

Calculations for an ingot of 300 mm diameter of Ti-Al system intermetallic were conducted within the framework of the mathematical model of cylindrical ingots crystallization at electron beam melting. As a result of calculations, temperature fields in the ingot during electron beam melting were obtained, and technological modes of conducting the process were determined. The determined technological modes were used to produce a large-sized ingot of 300 mm diameter from Ti29Al alloy in electron beam installation UE-121. The quality of this ingot was studied and it was shown that application of optimized technological modes allows producing large-sized titanium aluminide ingots of homogeneous composition and without defects. Ref. 12, Table 1, Fig. 6.
Keywords: electron beam melting; intermetallic of Ti–Al system; mathematical model; ingot; chemical composition; structure

Received 04.20.2020


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