Table 6: Effect of atmosphere purity and cooling rate on oxygen and carbon contents in AstCrM + 0.5% C material sintered at 1120°C for 30 min in relation to density.

Density level (g/cm3)Atmosphere purityCooling rate (°C/min)O2 (%)C (%) (MPa)

6.56.0500.0700.425680
100.0950.41559
5.0500.0980.42640
100.1140.41466

6.86.0500.0900.43788
100.1000.41642
5.0500.0970.42754
100.1180.41566

7.16.0500.1250.43948
100.1420.42801
5.0500.1330.43929
100.1420.42729