RECYCLING OF THE TITANIUM SCRAP BY USING OF PLASMA METALLURGY

1 DRÁPALA Jaromír
Co-authors:
1 REŽNAR Jiří 1 PETLÁK Daniel 1 HALFAR Martin 2 KRČIL Jan 2 MÁRA Vladimír
Institutions:
1 Advanced Metal Powders s.r.o., Kravaře, Czech Republic, EU, jar.drapala@amp.czreznar@metalpowders.cz, petlak@metalpowders.cz, halfar@metalpowders.cz
2 Czech Technical University of Prague, Faculty of Mechanical Engineering, Prague, Czech Republic, EU, jan.krcil@fs.cvut.cz, vladimir.mara@fs.cvut.cz
Conference:
32nd International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 17 - 19, 2023
Proceedings:
Proceedings 32nd International Conference on Metallurgy and Materials
Pages:
615-621
ISBN:
978-80-88365-12-9
ISSN:
2694-9296
Published:
13th June 2023
Metrics:
146 views / 87 downloads
Abstract

The aim of this work is to design and define technological procedures enabling the use of titanium scrap in the form of chips or piece of material as an input raw material for the production of spherical powders suitable for powder metallurgy or additive technologies. In this work, plasma metallurgy in the horizontal and vertical furnaces under a high purity atmosphere of argon (5N8 purity) was used for remelting the commercial titanium alloys. The content of oxygen and hydrogen in titanium was measured by element analyser and changes in phase composition were studied by light optical and scanning electron microscopy supplemented by microhardness measurement. The results proved, that plasma arc melting can be used for recycling of titanium alloys in order to manufacture a material that not only corresponds in properties to the material produced by primary metallurgy but can also be used for the production of powder by atomization processes.

Keywords: Plasma metallurgy; titanium scrap; titanium alloys; recycling, microstructure

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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