Tensile, Impact, Wear and Corrosion Behavior on Conventionally Melted Nitrogen Alloyed Martensitic Stainless Steel in hot forged, hardened and tempered conditions

Abstract

In the recent years, the need for corrosive resistive high strength materials with less cost has become a mandatory requirement for several applications. Though there are many advanced materials available with better properties still the researchers are in search of a material with high corrosive and wear resistance property. Therefore, the main aim of the present investigation is to develop high strength Nitrogen Alloyed Martensitic Stainless Steel (NAMSS) by conventional induction melting. Six different combinations of the NAMSS were prepared to understand the effect of nitrogen alloy on martensitic stainless steel in hot forged, hardened and tempered conditions. So far, tensile, impact, wear and corrosion tests were carried out in the NAMSS and it was found that the tensile strength are being increased when addition of nitrogen alloy but the impact toughness, wear and corrosion properties are also increased up to a certain level of nitrogen but they are subsequently decreasing on further addition of nitrogen. The fracture morphology were revealed by SEM and it shows ductile and quasi-cleavage fracture on the surfaces.