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
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 ele...
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2024-08-01
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| author | Galina M. Zeer Yuri I. Gordeev Elena G. Zelenkova Artur K. Abkaryan Evgeny V. Gerasimov Mikhail Yu. Kuchinskii Sergey M. Zharkov |
| author_facet | Galina M. Zeer Yuri I. Gordeev Elena G. Zelenkova Artur K. Abkaryan Evgeny V. Gerasimov Mikhail Yu. Kuchinskii Sergey M. Zharkov |
| author_sort | Galina M. Zeer |
| collection | DOAJ |
| description | 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 Ti<sub>2</sub>Cu 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. |
| format | Article |
| id | doaj-art-8aa79cbadf664b2d8cd1cf3289d84677 |
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| issn | 2075-4701 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-8aa79cbadf664b2d8cd1cf3289d846772025-08-20T01:55:41ZengMDPI AGMetals2075-47012024-08-0114999110.3390/met14090991Effect of the Addition of Cu and Al on the Microstructure, Phase Composition and Properties of a Ti-6Al-4V Alloy Obtained by Selective Laser MeltingGalina M. Zeer0Yuri I. Gordeev1Elena G. Zelenkova2Artur K. Abkaryan3Evgeny V. Gerasimov4Mikhail Yu. Kuchinskii5Sergey M. Zharkov6Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaSiberian Federal University, 79 Svobodny Ave., Krasnoyarsk 660041, RussiaThe 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 Ti<sub>2</sub>Cu 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.https://www.mdpi.com/2075-4701/14/9/991titanium alloysTi-6Al-4Vpowdersadditive technologiesselective laser meltingmicrostructure |
| spellingShingle | Galina M. Zeer Yuri I. Gordeev Elena G. Zelenkova Artur K. Abkaryan Evgeny V. Gerasimov Mikhail Yu. Kuchinskii Sergey M. Zharkov 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 titanium alloys Ti-6Al-4V powders additive technologies selective laser melting microstructure |
| title | 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | titanium alloys Ti-6Al-4V powders additive technologies selective laser melting microstructure |
| url | https://www.mdpi.com/2075-4701/14/9/991 |
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