The effect of Mn and Al contents on the solvus of κ phase in austenitic Fe-Mn-Al-C alloys

Phases Equilibrium Study in Quaternary Iron-rich Fe-Al-Mn-C Alloys

“…High manganese austenitic FeMn-Al-C alloys are considered as strong alternatives to conventional stainless steels. Most of the studies on these alloys focus on the mechanical properties improvement by carbide precipitation [5][6][7] or TWIP/TRIP effect development by manganese addition. 1,[8][9][10][11] Ferritic matrix may also be interesting for mechanical properties if additional elements (C, Mn...) allow to precipitate new phases (g or k) enhancing matrix mechanical properties.…”

Ab Initio calculations of phase stabilities in the Fe−Al−C system and CALPHAD-Type assessment of the iron-rich corner

“…IT has been largely reported that aluminum-alloyed steels can be hardened by a dispersion of k-Fe 3 AlC carbides (e.g., References 1 through 3) and the microstructure of such steels has been investigated in detail [4,5,6] (Figure 1). However, to control the precipitation microstructures of steels and also to master the carburizing process of Fe-Al alloys, it is necessary to rely on the thermodynamical properties of the iron-rich phases in the Fe-Al-C system.…”

Ab Initio-Based Modelling of the Yield Strength in High-Manganese Steels

“…Using the lattice parameter calculated according to Equation (3), this size difference can be calculated to approximately 0.03 nm. Comparing this value with the lattice distortion effects by Al and Mn in an austenitic steel according to [45], which are 0.000065 nm wt. % Mn and 0.00095 nm wt.…”