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Article

Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %)

1
Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II No 24, 61-138 Poznan, Poland
2
Laboratory of Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, CH-3602, Thun, Switzerland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(3), 587; https://doi.org/10.3390/ma13030587
Received: 5 January 2020 / Revised: 22 January 2020 / Accepted: 24 January 2020 / Published: 27 January 2020
Titanium β-type alloys are preferred biomaterials for hard tissue replacements due to the low Young modulus and limitation of harmful aluminum and vanadium present in the commercially available Ti6Al4V alloy. The aim of this study was to develop a new ternary Ti-Zr-Nb system at 36≤Ti≤70 (at. %). The technical viability of preparing Ti-Zr-Nb alloys by high-energy ball-milling in a SPEX 8000 mill has been studied. These materials were prepared by the combination of mechanical alloying and powder metallurgy approach with cold powder compaction and sintering. Changes in the crystal structure as a function of the milling time were investigated using X-ray diffraction. Our study has shown that mechanical alloying supported by cold pressing and sintering at the temperature below α→β transus (600°C) can be applied to synthesize single-phase, ultrafine-grained, bulk Ti(β)-type Ti30Zr17Nb, Ti23Zr25Nb, Ti30Zr26Nb, Ti22Zr34Nb, and Ti30Zr34Nb alloys. Alloys with lower content of Zr and Nb need higher sintering temperatures to have them fully recrystallized. The properties of developed materials are also engrossing in terms of their biomedical use with Young modulus significantly lower than that of pure titanium. View Full-Text
Keywords: metals and alloys; mechanical alloying; X-ray diffraction; phase transition; powder metallurgy metals and alloys; mechanical alloying; X-ray diffraction; phase transition; powder metallurgy
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MDPI and ACS Style

Marczewski, M.; Miklaszewski, A.; Maeder, X.; Jurczyk, M. Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %). Materials 2020, 13, 587. https://doi.org/10.3390/ma13030587

AMA Style

Marczewski M, Miklaszewski A, Maeder X, Jurczyk M. Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %). Materials. 2020; 13(3):587. https://doi.org/10.3390/ma13030587

Chicago/Turabian Style

Marczewski, Mateusz, Andrzej Miklaszewski, Xavier Maeder, and Mieczyslaw Jurczyk. 2020. "Crystal Structure Evolution, Microstructure Formation, and Properties of Mechanically Alloyed Ultrafine-Grained Ti-Zr-Nb Alloys at 36≤Ti≤70 (at. %)" Materials 13, no. 3: 587. https://doi.org/10.3390/ma13030587

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