Abstract
TixAl100-x powders were synthesized by mechanical alloying (MA) of Ti powder and Al powder using a vibrational ball milling in 35kPa Ar. Though MA powders were agglomerated, fine dispersion of Ti and Al elements was performed for 720ksec MA treatment.
Ti-34mass%Al samples, which were prepared by mixing MA powder and Al powder, were hot-pressed at 873K-1173K under 100MPa. The pressing at the melting point of Al enabled 85% deformation of the samples. Furthermore, formation of Ti-Al intermetallic compound was promoted by heating over its melting point. The Ti content in the Ti-Al Intermetallic compound was increased with increasing hot-pressing temperature.
