Abstract Scope |
High-nitrogen stainless steel powder is an advanced functional material renowned for its remarkable strength and corrosion resistance, which has wide applications in fields such as marine engineering and biomedical industries. Based on the presents of M2(C,N) phase significantly enhances the mechanical and wear properties of high-nitrogen steel, making it a vital component in the study of this material. This study employs JmatPro software to calculate phase diagrams, focusing on the influence of nitrogen content in FeCr17Mn11Mo3Nx powder on the composition of equilibrium precipitated phases, non-equilibrium solidification paths, and primary phase formation. Furthermore, the connection between alloy composition, microstructure, and performance is examined using Scheil solidification calculation, CCT curve, TTT curve, and mechanical property analysis. The research findings indicate that within the N range of 0.703-1.010% mass fraction, the M2(C,N) phase content increased from 6.09 wt% to 8.8 wt%, delivering theoretical guidance and a reference for experimental preparation of FeCr17Mn11Mo3Nx powder. |