The steel should have reasonable incubation period at the nose of its TTT diagram and long bainitic bay. The sample is quenched above MS temperature in a salt bath to reduce thermal stress (instead of cooling below MF directly). The TTT diagram for 1045 steel is a valuable tool in understanding its transformation and heat treatment. This article explores the TTT diagram for 1045 steel, discussing its phases and transformation temperatures.
See the 1045 steel cct diagram, compare it with the 1045 steel ttt diagram and 1045 steel phase diagram, and learn how cooling rate changes microstructure.. Time-Temperature-Transformation (TTT ) Diagram T (Time) T (Temperature) T (Transformation) diagram is a plot of temperature versus the logarithm of time for a steel alloy of definite composition. It is used to determine when transformations begin and end for an isothermal (constant temperature) heat treatment of a previously austenitized alloy.