Heterogeneous eutectic structure in Ti–Fe–Sn alloys

Optimization of mechanical properties of Ti–Fe–Sn alloys by controlling heterogeneous eutectic structure

“…Ti þ TiFe, Ref. [10]. On the basis of the present microstructural analysis, it is believed that the bimodal eutectic structure can form through two distinct eutectic reactions, i.e.…”

“…Recently, there is an interesting report that TieFeeSn nanoeutectic composites consisting of two distinct eutectic structures so-called bimodal eutectic structure, which stems from a quasiperitectic reaction collaborated with two eutectic reactions, possesses a high strength of w1.7 GPa with a reasonable plasticity of w8% [10]. In addition, the understanding of the solidification evolution of the TieFeeSn nanoeutectic composites enables the modulation of the microstructural heterogeneity, which results in a variation of the mechanical properties.…”

“…In the present study, TieFeeSn nanoeutectic composites with different amounts of the eutectic structures have been fabricated based on the TieFeeSn phase diagram previously studied [10]. We focus on understanding influence of the bimodal eutectic structure on the mechanical properties of the TieFeeSn nanoeutectic composites.…”

“…[10]), reveal that the lamellar eutectic structure consists of TiFe and Ti 3 Sn phases while the rod-like eutectic structure contains TiFe and b-Ti phases. Moreover, the EDX analysis of the phases indicates that b-Ti,TiFe and Ti 3 Sn phases are composed of Ti 79.11 Fe 10.89 Sn 10.01 , Ti 53.85 Fe 46.15 and Ti 72.4 Fe 3.08Sn 24.52 , respectively.…”

Enhancement of mechanical properties in a Fe81Nb9B10 ultrafine-eutectic composite with in-situ polygonal pro-eutectic and encapsulating eutectic structure

“…Their distinctive mechanical properties are attributed to the modulation of deformation behavior. Therefore, controlling the characteristics of deformation bands is very important for more durability and reliability of heterogeneous ultrafine composites [14][15][16][17][18][19]. However, unsolved serious issue about the typical trade-off between strength and plasticity still remains.…”