|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Efficient Experimental Determination of Diffusion Coefficients and Elastic Modulus for the Ti-Mo-Nb-Ta-Zr System
||Zhangqi Chen, Ji-Cheng Zhao
|On-Site Speaker (Planned)
An aging population worldwide with an extended lifespan is demanding more biomedical prosthetic devices, such as knee and hip replacements, to sustain an active lifestyle. Ti alloys are considered to be one of the best options for implant materials due to their biocompatibility and relatively low elastic modulus. The fundamental material properties such as thermodynamic stability, diffusivity and elastic modulus of the binary and ternary systems of the Ti-Mo-Nb-Ta-Zr system are very valuable for establishment of databases for development of low-modulus Ti alloys. A set of diffusion multiple are made based on these five elements and annealed at three different temperatures. Phase diagrams and interdiffusion coefficients are evaluated by electron probe micro-analysis (EPMA) and an automated forward-simulation method. Elastic modulus varies with composition is measured through surface acoustic wave (SAW) generated by ultrafast laser. The most up-to-date results will be presented.
||Planned: A print-only volume