2018 №03 (03) DOI of Article
2018 №03 (05)

Electrometallurgy Today 2018 #03
Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2018, #3, 27-31 pages

Effect of type of power source at 3D printing on structure

A.A. Pedash, V.V. Klochikhin, T.A. Mitina, V.G. Shilo

JSC «MOTOR SICH». 15 Motorostroiteley Ave., 69068, Zaporozhye. E-mail: tb.ugmet@motorsich.com

In the paper the composition, structure and properties of specimens of Ti–6Al–4V alloy, produced by technologies of a selective laser and electron beam melting are studied as-applied to manufacture of aircraft-purpose components. Comparative investigation of structure and properties of specimens after heat treatment, typical for alloy Ti–6Al–4V, before and after preliminary hot isostatic pressing, was carried out. It was found that the appearance of pores and lacks of fusion of granules in fractures and in microstructure requires the obligatory hot isostatic pressing of critical components to eliminate the above defects and to provide the better complex of characteristics of strength and ductility. 6 Ref., 2 Tabl., 5 Fig.
Key words: titanium alloy; additive technologies;. selective laser melting; electron beam melting; microstructure; mechanical properties
Received:                11.07.18
Published:               01.10.18
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