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Microstructure Evolution during the Sintering of Blended Elemental Ti-23Nb-0.7Ta-2Zr-1.2O Gum Metal Alloy
Technical Paper
2020-36-0046
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Gum metal alloy Ti-23Nb-0.7Ta-2Zr-l .20 (%at.) was developed based on theoretical calculations to reduce titanium elastic modulus by the addition of β stabilizing elements Nb and Ta, and Zr to provide increased strength without unduly increase in elastic modulus. Gum metal alloy presents unique properties, differing significantly from β-Ti traditional alloys, and enabling a wide range of possible applications. The alloy can be highly cold workable without work hardening, resulting in an elastic modulus as low as 40 GPa and elastic deformation further than 2.5%, thus the name gum metal. This investigation aimed to fabricate the alloy by powder metallurgy and to evaluate the microstructure evolution after sintering from 700 to 1200 °C. Elemental powders of Ti, Nb, Ta e Zr were produced by hydriding followed by milling. Compaction of samples was carried out by uniaxial and isostatic cold pressing. Micro structural characterization was performed by scanning electron microscopy and mechanical characterization by microhardness test. Density evolution was determined by Archimedes method. The results demonstrate a tendency for the stabilization of a β-Ti microstructure from the dissolution of Nb and Ta particles (β-phase stabilizers). However, higher temperatures may be required to complete the dissolution of Nb and Ta nuclei.
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Silva, D., de Salvo, J., and Rodrigues Henriques, V., "Microstructure Evolution during the Sintering of Blended Elemental Ti-23Nb-0.7Ta-2Zr-1.2O Gum Metal Alloy," SAE Technical Paper 2020-36-0046, 2021, https://doi.org/10.4271/2020-36-0046.Data Sets - Support Documents
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References
- C. Leyens and M. Peters Titanium and titanium alloys 2003 10.1007/978-3-319-69743-7_7
- T. Saito , T. Furuta , J.H. Hwang , S. Kuramoto , K. Nishino , N. Suzuki , R. Chen , A. Yamada , K. Ito , Y. Seno , T. Nonaka , H. Ikehata , N. Nagasako , C. Iwamoto , Y. Ikuhara , T. Sakuma Multifunctional alloys obtained via a dislocation-free plastic deformation mechanism Science 80 300 2003 464 167 10.1126/science.l081957
- T. Furuta , S. Kuramoto , J. Hwang , K. Nishino , T. Saito Elastic deformation behavior of multi-functional Ti-Nb-Ta-Zr-O alloys Mater. Trans. 46 2005 3001 3007 10.2320/matertrans.46.3001
- T. Furuta , S. Kuramoto , J. Hwang , K. Nishino , T. Saito , M. Niinomi Mechanical properties and phase stability of Ti-Nb-Ta-Zr-O alloys Mater. Trans. 48 2007 1124 1130 10.2320/matertrans.48.1124
- J. Zhang , C.C. Tasan , M.J. Lai , A.C. Dippel , D. Raabe Complexion-mediated martensitic phase transformation in Titanium Nat. Commun. 8 2017 10.1038/ncommsl4210
- D.M. Gordin , R. Ion , C. Vasilescu , S.I. Drob , A. Cimpean , T. Gloriant Potentiality of the "gum Metal" titanium-based alloy for biomedical applications Mater. Sci. Eng. C. 44 2014 362 370 10.1016/j.msec.2014.08.003
- L. Bolzoni Low-cost Fe-bearing powder metallurgy Ti alloys Met. Powder Rep. 74 2019 308 313 10.1016/j.mprp.2019.01.007
- E.B. Taddei , V.A.R. Henriques , C.R.M. Silva , C.A.A. Cairo Production of new titanium alloy for orthopedic implants Mater. Sci. Eng. C. 24 2004 683 687 10.1016/j.msec.2004.08.011
- V.A.R. Henriques , E.B. Taddei , C.R.M. Silva Isochronal sintering of Ti-35Nb-7Zr-5Ta Mater. Sci. Forum. 660–661 2010 118 123 10.4028/www.scientific.net/MSF.660-661.118
- D.R. Santos , M.S. Pereira , C.A.A. Cairo , M.L.A. Graç a , V.A.R. Henriques Isochronal sintering of the blended elemental Ti-35Nb alloy Mater. Sci. Eng. A. 472 2008 193 197 10.1016/j.msea.2007.03.075
- S.L.G. Petroni , E.T. Galvani , C.A.A. Cairo , C.C. Girotto , V.A.R. Henriques Evaluation of press-And-sinter processing parameters in titanium hydride powder metallurgy Key Eng. Mater. 704 2016 94 103 10.4028/www.scientific.net/KEM.704.94
- A. Amigó , A. Vicente , C.R.M. Afonso , V. Amigó Mechanical properties and the microstructure of β Ti-35Nb-l0Ta-xFe alloys obtained by powder metallurgy for biomedical applications Metals (Basel) 9 2019 10.3390/met9010076
- J. Málek , F. Hnilica , J. Veselý , B. Smola , R. Medlín The effect of annealing temperature on the properties of powder metallurgy processed Ti-35Nb-2Zr-0.5O alloy J. Mech. Behav. Biomed. Mater. 75 2017 252 261 10.1016/j.jmbbm.2017.07.032