Mechanical and Physical Properties of Titanium Alloy Ti6Al4V-2Y

This report will discuss the effect of pinning a foreign element, yttrium into titanium alloy using FFC Cambridge Process. Pinning of yttrium is expected to improve mechanical and physical properties of current titanium alloy grade 5. Titanium alloys are widely used in various applications such as in the aerospace industries as bodies of aircraft and in biomedical field as in implants and prosthetic limbs. This project’s objectives are to determine the mechanical and physical properties of titanium alloy Ti6Al4V-2Y and to identify the effect of different yttrium concentration pinned into titanium alloy. The methodology of this project is observing the titanium alloy under the Variable Pressure Field Emission Scanning Electron Microscope (VP-FESEM) observation, Vickers Hardness Test, X-Ray Diffraction (XRD), and Optical Microscope observation. The results show that Ti6Al4V-2Y has porous surface. From observation, grain size of Ti6Al4V-2Y is smaller than Ti6Al4V-7Y and subsequently the hardness value of Ti6Al4V-2Y is higher than Ti6Al4V-7Y. It is concluded that mechanical and physical properties of Ti6Al4V-2Y has been determined and the effects of different yttrium concentration pinned into titanium alloy has been identified.