Isothermal transformation diagram

An Isothermal Transformation Diagram (often referred to as an IT diagram or TTT diagram for Time-Temperature-Transformation) is a graphical representation used in materials science and metallurgy to illustrate the phase changes of a material, typically steel, as it is cooled or heated under isothermal (constant temperature) conditions. ### Key Aspects of Isothermal Transformation Diagrams: 1. **Axes**: The diagram typically features temperature on the vertical axis and time on the horizontal axis.