As Hot Rolled Microstructures
- Microstructure of hot-rolled Fe –0.94% C –0.51% Mn–0.32% Si –1.34% Cr alloy steel revealing a fully pearliticmatrix. Picralrevealed a network of cementite in the prior-austenite grain boundaries (arrows). This is not visible using nital. Originals at 1000X.
- Microstructure of as-rolled Fe –1.31% C –0.35% Mn–0.25% Si high-carbon water hardenabletool steel. Note the Widmanstättenintragranularcementite that precipitated as pro-eutectoid cementite before the eutectoid reaction. Originals at 1000X.
- Microstructure of the as-rolled Fe –1.31% C –0.35% Mn–0.25% Si specimen with the intergranular carbide network clearly visible after etching with alkaline sodium picrate, 90 °C –60 s. Original at 500X magnification. Note also some intragranular Widmanstätten cementite.