Figure 2
Variations in the yield (fracture) stress of the lamellar crystals. The yield (fracture) stresses were measured by compression tests at 1000 and 1400 °C in the (a) 0° and (b) 45° orientations. In the figures, the expected temperature dependencies of the yield stresses for the three C11b variant grains and C40-matrix phase in the lamellar-structured crystals, according to the evaluation in the previous papers5, 15, 24, are also drawn for comparison. Open marks indicate that the specimen was fractured before reaching 0.2% plastic strain.
