Influence of Ion Nitriding on Microstructure and Properties of Haynes 282 Nickel Superalloy Specimens Produced Using DMLS Technique

The paper investigates the influence of ion-nitriding process on microstructure, corrosion resistance, and tensile strength at elevated temperatures Haynes 282 nickel superalloy specimens produced by Direct Metal Laser Sintering (DMLS) technique. study was performed for two conditions, i.e., as-built DMLS method + covered a layer containing CrN Cr2N phases. An analysis surface morphology revealed that significantly affects physical chemical phenomena occurring specimen’s surface. XRD measurement showed preparing them with as well following nitriding residual stresses. Based nanohardness distribution through approximatively 7 μm in width superalloys substrate, results maximum values 27 GPa 13.5 nitrided respectively. protection from proved positive effect resistance solution 0.1 M Na2SO4 NaCl room temperature. tests 750 °C did not affect elevated-temperature