The ternary Fe-Mn-Ti system was investigated in the compositional range of up to 30 at.% Ti for temperatures ranging from 1000 °C to the melting temperature. Based on the metallographic investigation of as-cast alloys a partial liquidus projection was constructed, revealing large primary solidifying regions for the phases A 1, A 2, A 12, A 13, C 14 and Mn 4 Ti. Isothermal heat treatments at 1000 and 1200 °C revealed wide homogeneity ranges for the Mn-based phases A 12 and A 13 at Ti contents between 5 and 20 at.% and up to 65 at.% of Fe, indicating an electron-mediated stabilization of both phases for the simultaneous solution of Fe and Ti.

中文翻译：

---

Fe-Mn-Ti 体系在高达 30 at.% Ti 的浓度范围内的实验研究

在从 1000 °C 到熔化温度的温度范围内，研究了三元 Fe-Mn-Ti 系统，其成分范围高达 30 at.% Ti。基于铸态合金的金相研究，构建了部分液相线投影，揭示了 A 1、A 2、A 12、A 13、C 14 和 Mn 4 Ti 相的大型初级凝固区域。在 1000 和 1200 °C 的等温热处理显示，在 Ti 含量介于 5 和 20 at.% 之间以及高达 65 at.% 的 Fe 时，Mn 基相 A 12 和 A 13 的均匀性范围很广，表明电子介导的稳定性同时溶解铁和钛的两相。