Evaluation of the possibility of obtaining spherical powders of titanium alloy Ti 6Al 4V by supersonic reverse polarity plasma torch for use in additive manufacturing

• Autorzy: Gao Shiyi , Korzhyk Volodymyr , Strohonov Dmytro , Tereshchenko Oleksii , Demіanov Oleksii , Ganushchak Oleg

Identyfikatory

DOI

10.12913/22998624/205855

• Języki publikacji: EN

Abstrakty

EN

This work demonstrates the possibility of producing spherical Ti-6Al-4V Grade 5 alloy powders with superior technological properties compared to those obtained through conventional industrial gas atomization methods for additive manufacturing, by utilizing plasma atomization of a 1.0 mm diameter solid wire. The process employs supersonic plasma jets generated by a DC reverse polarity plasma torch with vortex arc stabilization. The plasma torch has a copper hollow electrode anode and a special diffusive nozzle cathode. Analysis of the particle size distribution of the powder showed the main fraction of -140 μm 96 %wt., and the amount of the finely divided fraction of -63 μm is up to 55-60 %wt. Also, using subsonic jet had been give fraction -250 μm, which is 97 %wt., and the amount of the finely-divided fraction -63 μm does not exceed 30 %wt. The study of the shape and structure properties of Ti 6Al 4V Grade 5 powder showed that the sphericity coefficient reaches up to 0.9, the number of defects in the form of satellites and irregular particles does not exceed 1 %wt. In terms of technological characteristics, Ti 6Al 4V Grade 5 powder obtained by the adopted technique is on par with the industrial method of producing spherical powders for additive manufactuing by the direct polarity plasma torches.

Słowa kluczowe

EN

plasma; atomization; reverse polarity; solid wire; Ti alloy; powder; particle size distribution; morphology; technological properties

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 8
• Strony: 434--448
• Opis fizyczny: Bibliogr. 77 poz., fig., tab.

Twórcy

autor

Gao Shiyi

• China‑Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangdong Provincial Key Laboratory of Material Joining and Advanced Manufacturing: 363, Changxing Road, Tianhe, Guangzhou, 510650, China

autor

Korzhyk Volodymyr

• China‑Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangdong Provincial Key Laboratory of Material Joining and Advanced Manufacturing: 363, Changxing Road, Tianhe, Guangzhou, 510650, China
• E.O. Paton Electric Welding Institute (PEWI), National Academy of Sciences of Ukraine, 11 Kazymyr Malevych St., 03150 Kyiv, Ukraine

• https://orcid.org/0000-0001-9106-8593

autor

Strohonov Dmytro

• E.O. Paton Electric Welding Institute (PEWI), National Academy of Sciences of Ukraine, 11 Kazymyr Malevych St., 03150 Kyiv, Ukraine

• https://orcid.org/0000-0003-4194-764X

autor

Tereshchenko Oleksii

• E.O. Paton Electric Welding Institute (PEWI), National Academy of Sciences of Ukraine, 11 Kazymyr Malevych St., 03150 Kyiv, Ukraine

autor

Demіanov Oleksii

• E.O. Paton Electric Welding Institute (PEWI), National Academy of Sciences of Ukraine, 11 Kazymyr Malevych St., 03150 Kyiv, Ukraine

autor

Ganushchak Oleg

• E.O. Paton Electric Welding Institute (PEWI), National Academy of Sciences of Ukraine, 11 Kazymyr Malevych St., 03150 Kyiv, Ukraine

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