Widmanstatten Structure of Carbon Steels

The effect of the main factors responsible for the formation of Widmanstatten structure in steel, i.e., the size of austenite grains, the cooling rate, and the chemical composition, is investigated. A generalizing diagram illustrating the susceptibility of steels to formation of Widmanstatten structure is presented as a function of their place in the Fe – C phase diagram. The mechanism of crystallization of Widmanstatten structures is considered.