Figure 10

Typical microstructure of the creep ruptured specimens at 575°C/100 MPa (tr = 1550 h): (a) aberrant ferritic matrix observed by BSD, (b) higher magnification image of (a), (c,d) typical structure of subgrain, M₂₃C₆, MX and Laves phase observed by TEM. The corresponding EDS and SAED are indicated in the right insets.