Continuous Cooling Transformations in Martensitic Stainless Steels

Abstract

To gain further insight into the nonequilibrium transformations produced by non-isothermal cycles in martensitic stainless steels, the study experimentally determined the CCT diagrams of four Cr13 and CrMoV14 type steels, which were cooled from two different austenizing temperatures. The results show that the changes in the chemical composition of the austenite, which are caused by the carbide dissolution and precipitation processes, have a considerable effect ont the phase transformations that occur during continuous cooling.