Papers by Keyword: Low-Cost Alloys

Abstract: The development of new low-cost alloys composed of common elements that show high biocompatibility and mechanical properties matching with human bone is the target of many researches recently. Design and controlling the mechanical properties of newly developed set of Ti-xFe-3Zr-yNb (x=3-8 & y=2-3, at.%) low-cost alloys through applying different thermomechanical treatments is the aim of this work. Fe-content in the present designed alloys is changing in the range 3 to 8 at.%. The hardness and Young's modulus of the alloys were measured for the alloys in the solution treated, hot rolled and subsequent ageing at 400 °C and 550 °C. The phases separation and hence hardness of the aged alloys at 400 °C and 550 °C are highly dependent on the Fe-content in the alloy. The Young's modulus of the alloys is also changing with the Fe-content and heat treatment, where lowest modulus (~80GPa) is shown in the Ti-5Fe-3Zr-3Nb alloy in the solution treated condition.

Abstract: The effect of Zr addition on the microstructure, cold workability and hardness of low-cost Ti-14Mn alloy was investigated. A set of alloys with1.5, 3 and6%wt. Zr were produced by arc melting. The alloys were subjected to solution heat treatment at 900 °C.Zr seems working as weak β-stabilizer in this Ti-14Mn-xZr alloy system. The effect of Zr-content on the cold workability was assessed.The cold workability of the Ti-14Mn-xZr alloys (withZr up to 6%) is higher than 90% reduction ration. The hardness slightly increased with the increase ofZr-content in Ti-14Mn-xZr alloys in both solution treated and cold rolled conditions.