· The top diagram illustrates
the global process of void coalescence to form the ductile fracture surface.
The result of this process is to form dimples in the fracture surface.
· In the central region of the sample
the fracture surface is normal to the tensile axis and the dimples are equiaxed.
In the shear lip region the dimples are elongated in the shear direction.
· The ductile fracture
surface of an annealed 1018
steel is also shown. Here the cone shear surface
is split between the two parts of the sample.
|
