The influence of the processing parameters on the porosity and microhardness of sintered Ti-20Nb biomedical alloy

Znanstveni rad - Izvorni znanstveni rad

• Autor: Ljerka Slokar Benić
• Autor: Gorana Domitrović
• Autor: Žiga Erman
• Autor: Jadranko Šubić
• Autorova ustanova: Sveučilište u Zagrebu; Metalurški fakultet
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Metalurgija

Sažetak (engleski)

Titanium based alloys are increasingly used in biomedicine due to their favourable properties. However, because of their high cost, new methods are being developed to produce more economical alloys. Therefore, in the framework of this work, Ti-20Nb alloy was produced by powder metallurgy. Namely, experimental alloy was prepared by mechanical alloying in a ball mill. The samples were singled out from the powder mixture and pressed on a hydraulic press. Sintering was carried out in a tube furnace in an argon atmosphere. Different processing parameters regarding the time and temperature of sintering were applied. Chemical homogeneity was analysed using the energy-dispersive spectrometry. Porosity was observed using the light microscope and microhardness was determined by Vickers method. The obtained results show that with a small correction of the applied technological parameters, in terms of time extension of mixing/mechanical alloying, it is possible to produce economically Ti-20Nb alloy having the properties suitable for biomedical application by using powder metallurgy technology.

• Ključne riječi (engleski): Powder metallurgy; titanium alloys; biomedical alloys; porosity; microhardness
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov zbornika: Conference Proceedings of 29th International Conference on Metallurgy and Materials METAL 2020
• Brojčani podaci: str. 1129-1134
• ISBN: 978-80-87294-97-0
• p-ISSN: 2694-9296
• DOI: https://doi.org/10.37904/metal.2020.3581
• URN:NBN: urn:nbn:hr:115:152746
• Datum objave publikacije: 2020-07-27
• Skup: Naziv: 29th International Conference on Metallurgy and Materials METAL 2020; Lokacija: Brno, Češka; Datum početka: 2020-05-20; Datum završetka: 2020-05-22; Vrsta izlaganja: Postersko izlaganje
• URL dokumenta: https://www.confer.cz/metal/2020
• Vrsta resursa: Tekst
• Izdavač: TANGER Ltd.
• Mjesto izdavanja: Ostrava, Czech Republic, EU
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2021-07-13 07:33:05