Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 483-84, Issue -, Pages 153-156Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2006.09.173
Keywords
dynamic Young's modulus; tensile property; Ti-Ta alloy; Ti-Hf alloy; metallic biomaterial
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The effects of Ta and Hf on the dynamic Young's moduli and tensile properties of Ti-Ta and Ti-Hf alloys for biomedical applications are comparatively studied in this paper. It is found that with increasing Hf content, the dynamic Young's modulus of the Ti-Hf alloy gently decreases and its tensile strength keeps on increasing. In contrast, with increasing Ta content, the dynamic Young's modulus of the Ti-Ta alloys first decreases, reaches a minimum value of 69 GPa and then increases. In parallel, the tensile strength first increases, reaches a maximum value of 587 MPa, and then slightly decreases. It is shown that the addition of Hf has a slight influence on the dynamic Young's modulus and a strong influence on the tensile properties of the Ti-Hf alloy, while an increase of Ta content has a strong effect on both the dynamic Young's modulus and tensile properties of the Ti-Ta alloy. (c) 2007 Elsevier B.V. All rights reserved.
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