According to research it was observed that after heat treatment of \(\beta\) solution followed by quenching and aging the sample of titanium displayed micrographs of \(\beta\) grain surrounded by layer of \(\alpha\) and highly defined distributes nano intragranular \(\alpha\) precipitates. It was observed that slower cooling rate after heat treatment causes the \(\alpha\) particles to become coarser. SEM images also confirm that the \(\alpha\) precipitates nucleate on \(\beta\) grain boundaries and on intragranular locations

In order to study the formation titanium was \(\beta\) solutionised, quenched and aged and nucleation of \(\alpha\) interface was observed at \(\beta\) / \(\omega\) interfaces. , In their sample \(\omega\) precipitates are spherical in shape while \(\alpha\) particles exhibit a lenticular morphology upon cooling the precipitate is coarsened. It was observed the lenticular particles appear associated with \(\omega\) precipitates. It is speculated that these arise at \(\beta\) /\(\omega\) interface. It is however quite difficult to determine exact nucleation sites in this alloy as TEM still has low resolution.

When the ellipsoidal precipitates of \(\omega\) are present in the system it suggests low \(\omega\) /\(\beta\) misfits and therefore are considered less likely location for \(\alpha\) nucleation. The explanation of \(\alpha\) formation in this situation is analysed using 3DAP technology. The studies show the compositional profile during aging of the sample the region enriched in Cr regions show rejection of depletion of (V Mo Cr, \(\beta\) stabilizer and Al (\(\alpha\) stabilizer)) these suggest formation of \(\omega\) precipitates. This is illustrated in the image below The local piling of \(\alpha\) stabilizers in the \(\omega\) /\(\beta\) interface makes these sites viable for \(\alpha\) nucleation.