Electrometallurgy Today, 2018, №03

2018 №03 (08)

DOI of Article 10.15407/sem2018.03.01

2018 №03 (02)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2018, #3, 8-15 pages
 

Producing of high-strength titanium alloy VT22 by method of electron beam melting

S.V. Akhonin¹, V.A. Berezos¹, A.N. Pikulin¹, A.Yu. Severin¹, S.L. Shvab¹, 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
The integrated works were carried out on investigation of feasibility for producing ingots of high-strength complex-alloyed titanium alloy VT22 of a primary charge.. Using technology of an electron beam cold hearth remelting and a portion supply of metal into a water-cooled mould the ingots of 400 mm diameter and up to 3 m length were produced, from which the semi-products in the form of plates and hot-pressed rods of 60 mm diameter were manufactured. Results of investigations of structure and mechanical properties of semi-products, made of titanium alloy VT22 ingots. are presented. It was found that the metal of produced ingots and semi-products is in compliance with requirements of standards both by the chemical composition and also by the structure and mechanical properties. Moreover, the material is characterized by a good ductility at high strength characteristics. It is shown that the electron beam technology is an effective method for producing the complex-alloyed alloys of titanium. 12 Ref, 4 Tabl., 11 Fig.
Key words: вelectron beam melting; high-strength titanium alloy; ingot; chemical composition; structure; deformation; mechanical properties
 
Received:                06.11.17
Published:               01.10.18
 
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