THE EFFECT OF SOLUTION TREATMENT TEMPERATURE ON PROPERTIES OF TI-NB-ZR ALLOY FOR BIOAPPLICATIONS

1 MÁLEK Jaroslav
Co-authors:
1 HNILICA František 1 VESELÝ Jaroslav 2 VLACH Martin 3 KOLAŘÍK Kamil
Institutions:
1 UJP PRAHA a.s., Prague, Czech Republic, EU, malek@ujp.cz
2 Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic, EU, martin.vlach@mff.cuni.cz
3 CTU in Prague, Prague, Czech Republic, EU
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
1260-1265
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
67 views / 14 downloads
Abstract

The beta-titanium alloys are used for bioapplications (e.g. orthopaedic or dental implants) due to their excellent properties like biocompatibility, corrosion resistance, high strength, low Young’s modulus). The processing of these alloys is essential for their properties and therefore processing parameters should be chosen properly. In this work the effect of solution treatment temperature on properties of Ti-35Nb-Zr alloys has been studied by means of light microscopy, X-ray diffraction analysis and DSC analysis. The Ti-35Nb-2Zr alloy was prepared through powder metallurgy process (blended elemental powders, cold isostatic pressing and sintering). Sintered specimens were hot forged and solution treated at temperatures 800, 850, 900, 950 and 1000 °C for 0.5 hrs and water quenched. The grain size changed from 35 to 75 μm. In addition precipitation processes have been observed along with precipitate coarsening. The α-phase precipitation has significant influence on the matrix grain growth.

Keywords: Solution treatment, beta-titanium, grain size, powder metallurgy

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