Table 1.

Specimen groups and their post-treatments.

No.	Group	Post Treatment
1	As-built	None
2	HIP-780	HIP, 2h @ 780 °C under 120 MPa
3	HIP-920	HIP, 2h @ 920 °C under 120 MPa
4	HT-780	Vacuum heat treatment, 2 h @ 780 °C
5	HT-1000	Vacuum heat treatment, 2 h @ 1000 °C
6	Commercial	Extruded and annealed 1/2″ rod