Thermodynamic Calculations of Precipitate Phases in FeCr17Mn11Mo3Nx Powder Based on JMatPro

High-nitrogenNitrogen stainless steelStainless steel exhibits remarkable toughnessToughness and corrosionCorrosion resistance, which can make it widely used in diverse fields such as marine engineering and biomedicine. Simultaneously, the presence of the M2(C, N) phase, functioning as a secondary phase particle, significantly enhances the mechanical propertiesMechanical properties of high-nitrogenNitrogen stainless steelStainless steel. Therefore, this study focuses on FeCr17Mn11Mo3Nx powder as the research materialMaterials, choosing JMatPro thermodynamic software to compute the composition of precipitated phasesPrecipitated phase, solidificationSolidification paths, and pitting corrosionCorrosion resistance across varying nitrogenNitrogen contents. The results indicate that with an increase in nitrogenNitrogen content from 0.703 wt% to 1.010 wt%, the content of the M2(C, N) phase will increase from 6.09 wt% to 8.82 wt%. There are two solidificationSolidification paths can be observed: L → L + α → L + α + γ and L → L + γ → L + γ + α. Time–temperature-transformation (TTT) curves demonstrate that higher nitrogenNitrogen content can increase the cooling rateCooling rate of the M2(C, N) phase. Furthermore, elevated nitrogenNitrogen content results in increased materialMaterials hardnessHardness and strength.