Abstract
The aim of this work was to design and develop a β Ti-type based alloy with a low elastic modulus close to that of the human bone. It’s imperative for the elastic modulus of the implant to match that of human bone in order to avoid the stress shielding effect which is explained as the difference in the transfer of mechanical stress from the implant to the bone. Currently commercially available Ti6Al4V alloy that is being used for biomedical application is reported to have some drawbacks such a higher elastic modulus as compared to the bone and the release of toxic elements of V and Al are reported to cause health issues. Therefore, the development of β-Ti alloy with low elastic modulus and non-toxic element has gained great research interest. This research work focus on the composition design of a binary Ti-Mo alloys (10.02, 10.83, 12.89 and 15.05 wt% Mo) using the cluster plus glue atom model and using the β stabilizing predictions methods such as Moeq, Kβ stability index, e/a ratio and the d-orbital map to predict the stability of the β phase in binary Ti-Mo alloys. The alloys were fabricated using the commercial Arc re-melting furnace with a water-cooled copper mould. Solution treatment of the as-cast ingots in a ceramic furnace took place at a temperature of 1100℃ for 1 h and then the ingots were quenched in ice water...
M.Tech. (Engineering Metallurgy)