STRUCTURE AND MECHANICAL PROPERTIES OF TANBHFZRTI HIGH ENTROPY ALLOY

1 ZÝKA Jiří
Co-authors:
2,3 MÁLEK Jaroslav 4 PALA Zdeněk 5 ANDRŠOVÁ Irena 6 VESELÝ Jaroslav
Institutions:
1 UJP PRAHA a.s. Prague, Czech Republic, EU, zyka@ujp.cz
2 UJP PRAHA a.s., Prague, Czech Republic, EU, malek@ujp.cz
3 Czech Technical University in Prague, Prague, Czech Republic, EU, jaroslav.malek@fs.cvut.cz
4 Institute of Plasma Physic, AS CR, Prague, Czech Republic, EU, pala@ipp.cas.cz
5 UJP PRAHA a.s. Prague, Czech Republic, EU, andrsova@ujp.cz
6 UJP PRAHA a.s. Prague, Czech Republic, EU, vesely@ujp.cz
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1687-1692
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
307 views / 108 downloads
Abstract

High entropy alloys are a new material class with promising structural and mechanical properties in wide range of applications. In principle they consist of five or more elements in equimolar concentrations resulting basically in single phase microstructure. TaNbHfZrTi alloy was developed by Senkov for high temperature applications.Since all of these elements are biocompatible the TaNbHfZrTi alloy can be investigated as a prospective bio implant material. The alloy was prepared by vacuum arc melting, no annealing treatment was applied. Tensile test and hardness test at room temperature were performed with very good results: yield strength 1155 MPa, rupture strength 1212 MPa, Vickers hardness 359 HV30. Microstructure and fracture morphology was also investigated.

Keywords: High entropy alloys, microstructure, mechanical properties, tensile test

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