Characterization of Two Ti-Nb-Hf-Zr Alloys Under Different Cold Rolling Conditions |
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| Authors: | M Gonz??lez F J Gil J M Manero J Pe?a |
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| Affiliation: | 1. Department of Materials Science and Metallurgy, Universitat Polit??cnica de Catalunya, Avda. Diagonal 647, 08028, Barcelona, Spain
2. Materials Science, Elisava Escola Superior de Disseny, C/Ample 11-13, 08002, Barcelona, Spain
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| Abstract: | The objective of this study is to obtain a new biomaterial to use in the load transfer medical implants field. The influence of cold work in the thermoelastic martensitic transformation and elastic modulus was investigated for a previously developed Ti-24.8Nb-16.2Hf-1Zr alloy (A1) and a new Ti-35Nb-9Hf-1Zr alloy (A2). The nanoindentation tests with spherical tip showed a decrease of the elastic modulus when increasing the cold work percentage. The lowest value (46 GPa) was achieved after the 95% reduction in thickness for A1. By contrast, the A2 alloy exhibits its lowest elastic modulus in the uncold-worked condition (58 GPa) and did not present evidences of thermoelastic martensitic transformation. |
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