Electrometallurgy Today, 2018, №03



2018 №03 (01)

DOI of Article 10.15407/sem2018.03.02

2018 №03 (03)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2018, #3, 16-19 pages
 

Peculiarities of producing large ingots of titanium aluminides in electron beam installations

S.V. Akhonin¹, A.Yu. Severin¹, V.A. Berezos¹, A.N. Pikulin¹, A.G. Erokhin²

¹E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
²SE «RPC «Titan» of the E.O.Paton Electric Welding Institute of the NAS of Ukraine. 26 Raketnaya Str., 03028, Kyiv. E-mail: titan.paton@gmail.com

Mathematical model of crystallization of cylindrical ingots of titanium alloys in electron beam melting was adapted for calculations of crystallization of large ingots of diameters from 200 up to 600 mm, made of alloys on titanium aluminide base. Calculations were made for 200 mm diameter ingot of TiAl intermetallic. As a result of calculations the temperature fields were obtained in ingot and optimum conditions of melting were determined. In electron beam installation UE-208M the experimental melting of large 200 mm diameter ingot of Ti–29Al intermetallic alloy was performed for the first time. The quality of the produced ingot was studied and it was found that aluminium is distributed uniformly across its section, thus testifying that the electron beam melting modes were selected properly by using the mathematic modeling. 8 Ref., 2 Tabl., 3 Fig.
Key words: electron beam melting; mathematic modeling; ingot; alloy; chemical composition; structure
 
Received:                03.07.18
Published:               01.10.18

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