Evaluation of Relatively Low Strength Maraging Steel

This study aims to evaluate a new developed Maraging steel produced through air induction melting followed by electroslag remelting under CaF2 based slag. The shielding of gamma-rays and fast neutrons by the investigated steels have been studied using Xcom and MCNP5 programs, respectively. It was found that improvement in mechanical properties of the investigated steels does not depend mainly on chemical composition but also on the production technology. This study confirmed that, high impact energy absorbed by electroslag remelting steel was being accompanied with high retained austenite percent at optimum condition of heat treatment. The microstructure results showed that, very fine and well distributed microstucture of the produced steels has been obtained after remelting using electroslag remelting process. The obtained results of shielding properties showed that, good shielding properties of steels under investigation were obtained by comparing with cobalt free titanium containing Maraging steel, 18 Ni (T200).