Figure 2 shows the heat-treatment procedure and mechanicalspecimen geometry. Isothermal treatment tests were carried out on a thermal dilatometer(DIL 805), which provided an accurate control of temperature, time, and cooling rate. The 6-mm-diameter and 12-mm-high cylindrical specimens were machined by electro-discharge
machining.
Figure 2 shows the heat-treatment procedure and mechanicalspecimen geometry. Isothermal treatment tests were carried out on a thermal dilatometer(DIL 805), which provided an accurate control of temperature, time, and cooling rate. The 6-mm-diameter and 12-mm-high cylindrical specimens were machined by electro-discharge
machining.