Table 1: Microstructural data as a function of holding time and temperature of AISI D2 steel.

Temp. (°C)Holding time (min.)Liquid fraction (%fl)Shape factor (SF)Ave. Grains size ( m)

12805120.835
10150.8550
15170.855
20180.7865

13005150.8640
10180.8545
15250.7850
20260.7555

13205250.7450
10300.750
15360.6860
20360.775

13405350.4555
10370.460
15380.4165
20400.380