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| Contact |
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Bidaux Jacques-Eric |
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| Title |
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Powder Injection Moulding Of Low Modulus Ti-13Nb-13Zr For Implant Application |
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Bidaux J.-E., Comby F., Rodriguez-Arbaizar M., Carreño-Morelli E. |
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| References |
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Proc. of World PM2016 Congress, Hamburg, October 9-13, 2016, pp. 1-6 |
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http://www.worldpm2016.com/ |
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| Abstract |
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Ti-13Nb-13Zr is a low modulus near- titanium alloy developed for surgical implants. In this work, the possibility of producing Ti-13Nb-13Zr parts by metal injection moulding is evaluated. Tensile test specimens are injection moulded using a feedstock based on elemental powders, then debinded and sintered. In an attempt to further decrease the elastic modulus, additional quenching and ageing post treatments are applied. The as-sintered material shows a density of 96%, an elastic modulus of 85 MPa and a yield strength of 842 MPa. Subsequent water quenching from the phase allows decreasing the elastic modulus to 58 GPa while retaining a good strength, 684 MPa. Further aging for 4h at 500°C leads to the highest strength, 951 MPa, but the elastic modulus, 79 GPa, is practically unchanged compared to the as-sintered material. The microstructures before and after thermal treatment are analysed by using scanning electron microscopy and X-ray diffraction. |
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