Effect of Nb and Sn on the Transformation of alpha-Ti to beta-Ti in Ti-35 Nb-2.5 Sn Nanostructure Alloys using Mechanical Alloying

摘要

This study was conducted to observe the phase transformation of Ti-35 percent Nb-2.5 percent Sn during milling for various milling times using a mixing machine and a high-energy ball milling machine (HEBM). In this work, niobium was chosen as the beta stabilizer and tin as the reducer of the elastic modulus. The starting materials were blended and milled in a mixing machine (24 h) and a high-energy ball mill machine (1 h, 4 h, and 12 h). The particle sizes and phases of the produced powders were analyzed using XRD, SEM, TEM, and PSD; the titanium was found to be fully transformed from the a phase to Ti the beta phase Ti after 12 h of milling.