Modification of structural-phase state of titanium alloy Ti-6Al-4V, obtained by electron-beam additive method | Izvestiya vuzov. Fizika. 2019. № 8. DOI: 10.17223/00213411/62/8/143

Modification of structural-phase state of titanium alloy Ti-6Al-4V, obtained by electron-beam additive method

Using the electron-beam wire additive technology in two modes differing in the magnitude of the electron beam current, samples of Ti-6Al-4V alloy were obtained. The structure, phase composition, and microhardness of the samples were studied. The growth process was carried out using a combined substrate of titanium alloy VT1-0 and 302 stainless steel. It was shown that the regime with a large beam current was characterized by the formation of β-phase columnar grains with a smaller height and width compared with the low current mode. This effect is discussed in terms of equalizing the temperature gradient and increasing the cooling rate during the growth process, due to the formation of a diffusion joint between the plates of titanium alloy and stainless steel containing the intermetallic compounds Fe₂Ti, FeTi and Cr₂Ti.

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Keywords

аддитивная технология, титановый сплав, микроструктура, микротвердость, additive technology, titanium alloy, microstructure, microhardness

Authors

Name	Organization	E-mail
Utyaganova V.R.	Institute of Strength Physics and Materials Science of SB RAS	veronika_ru@ispms.tsc.ru
Vorontsov A.V.	Institute of Strength Physics and Materials Science of SB RAS	vav@ispms.ru
Eliseev A.A.	Institute of Strength Physics and Materials Science of SB RAS	alan@ispms.tsc.ru
Osipovich K.S.	Institute of Strength Physics and Materials Science of SB RAS	osipovich_k@ispms.tsc.ru
Kalashnikov K.N.	Institute of Strength Physics and Materials Science of SB RAS	sso.spektr.asu@gmail.com
Savchenko N.L.	Institute of Strength Physics and Materials Science of SB RAS	savnick@ispms.tsc.ru
Rubtsov V.E.	Institute of Strength Physics and Materials Science of SB RAS	rvy@ispms.tsc.ru
Kolubaev E.A.	Institute of Strength Physics and Materials Science of SB RAS	eak@ispms.tsc.ru

Всего: 8

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