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Open AccessArticle
Effect of the Addition of Cu and Al on the Microstructure, Phase Composition and Properties of a Ti-6Al-4V Alloy Obtained by Selective Laser Melting
by
Galina M. Zeer
Galina M. Zeer 1,*,
Yuri I. Gordeev
Yuri I. Gordeev 1,
Elena G. Zelenkova
Elena G. Zelenkova 1,
Artur K. Abkaryan
Artur K. Abkaryan 1,
Evgeny V. Gerasimov
Evgeny V. Gerasimov 1,2,
Mikhail Yu. Kuchinskii
Mikhail Yu. Kuchinskii 1 and
Sergey M. Zharkov
Sergey M. Zharkov 1,3,*
1
Department of Materials Science and Materials Processing Technology, Polytechnical Institute, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, Russia
2
LLC «Polihrom», Dubrovinskogo, 58/78, Krasnoyarsk 660049, Russia
3
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk 660036, Russia
*
Authors to whom correspondence should be addressed.
Metals 2024, 14(9), 991; https://doi.org/10.3390/met14090991 (registering DOI)
Submission received: 24 July 2024
/
Revised: 10 August 2024
/
Accepted: 29 August 2024
/
Published: 30 August 2024
Abstract
The present study considers the samples of an Ti-6Al-4V alloy obtained by selective laser melting with the addition of a 10% Cu-Al powder mixture. The microstructure, elemental composition and phase composition, as well as the physico-chemical properties, have been investigated by the methods of electron microscopy, X-ray phase analysis, and bending testing. The obtained samples have a relative density of 98.5 ± 0.1%. The addition of the Cu-Al powder mixture facilitates supercooling during crystallization and solidification, which allows decreasing the size and changing the shape of the initial β-Ti grains. The constant cooling rate of the alloy typical for the SLM technology has been shown to be able to prevent martensitic transformation. The formation of a structure that consists of β-Ti grains, a dispersed eutectoid mixture of α-Ti and Ti2Cu grains, and a solid solution of Al in Cu has been revealed. In the case of doping by the 10% Cu-Al mixture, the physico-mechanical properties are improved. The hardness of the samples amounts to 390 HRC, with the bending strength being 1550 ± 20 MPa and deformation of 3.5 ± 0.2%. The developed alloy can be recommended for applications in the production of parts of jet and car engines, implants for medicine, and corrosion-resistant parts for the chemical industry.
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MDPI and ACS Style
Zeer, G.M.; Gordeev, Y.I.; Zelenkova, E.G.; Abkaryan, A.K.; Gerasimov, E.V.; Kuchinskii, M.Y.; Zharkov, S.M.
Effect of the Addition of Cu and Al on the Microstructure, Phase Composition and Properties of a Ti-6Al-4V Alloy Obtained by Selective Laser Melting. Metals 2024, 14, 991.
https://doi.org/10.3390/met14090991
AMA Style
Zeer GM, Gordeev YI, Zelenkova EG, Abkaryan AK, Gerasimov EV, Kuchinskii MY, Zharkov SM.
Effect of the Addition of Cu and Al on the Microstructure, Phase Composition and Properties of a Ti-6Al-4V Alloy Obtained by Selective Laser Melting. Metals. 2024; 14(9):991.
https://doi.org/10.3390/met14090991
Chicago/Turabian Style
Zeer, Galina M., Yuri I. Gordeev, Elena G. Zelenkova, Artur K. Abkaryan, Evgeny V. Gerasimov, Mikhail Yu. Kuchinskii, and Sergey M. Zharkov.
2024. "Effect of the Addition of Cu and Al on the Microstructure, Phase Composition and Properties of a Ti-6Al-4V Alloy Obtained by Selective Laser Melting" Metals 14, no. 9: 991.
https://doi.org/10.3390/met14090991
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