Abstract
Electrochemical behavior of aged and solution treated maraging steel have been investigated, in NaCl using open circuit potential (OCP) and potentiodynamics measurements. OCP shifts to more noble value during initial stage of immersion followed by slow shift in potential during the middle stage of immersion and eventually attain a steady state of potential during the last stage of monitoring. Various properties, such as, mechanical properties and corrosion resistance were investigated for aged and solution treated steel. Aging the maraging steel improving the mechanical properties and enhances the corrosion process. Maraging steel exhibits better passivity during polarization at low NaCl concentration and the passive region is broader than at higher concentration.