A36 HR Steel Tension Sample
cup & cone fracture surface of 5/8"-diameter sample cone cup
A36 Tension Fracture at 35X Looking down on the cone.
150X Note the dust particles on surface.
1500X Note the equi-axial microvoids.
Also note the second-phase particles sitting in the microvoids.
3500X 15,000X taken by Jeff Thomas with a JEOL SEM