You have fabricated a Ni$-$based Superalloy sample with $\backslash (95\backslash \%\backslash )$ density using dynamic compaction. You are trying two heat treatment processes to further increase the density: regular pressureless furnace heat treatment and hot isostatic pressing $($HIP$).$ The TTT diagram of the alloy is below. Propose two sintering cycles to maximise fatigue strength. The morphology of the gamma" is cuboidal while the delta phase is lamellar.

zDstructure

$3)$ structure