What is Widmansttaten Ferrite? How does it form and what is its effect on properties of steels?
Widmanstatten Structure – It is characterized by a geometrical pattern resulting from the formation of a new phase along certain crystallographic planes of the parent solid solution. The orientation of the lattice in the new phase is related crystallographically to the orientation of the lattice in the parent phase. Cause-In steels with carbon content upto 0.9%, when the rate of cooling is faster, the complete separation of the ferrite at the boundaries of large austenite grains is not possible, and ejection takes place within the crystal along certain planes (octahedral) forming a mesh like arrangement, which is Widmanstatten Structure.
