Structure and properties of as-cast Ti-Dy alloys

Phase composition, structure and mechanical properties of Ti–Dy–Si–Sn alloys

“…Our analysis of R-X IV phase diagrams [22] has shown that the first element meeting the above condition is Tb. A similar conclusion results from our analysis of Ti-R phase diagrams [30]. In this work, Dy was taken as a model element due to availability of information concerning its positive influence on mechanical properties of titanium alloys [5,14], and Ti-Dy-Si isothermal section at 927 8C [31].…”

Thermochemistry of binary liquid Gd–Ti and Tb–Ti alloys

“…The eutectic temperature measured by us (1215 • C) is somewhat lower than that (1270 • C) reported in [4]. This is in better agreement with our estimation (1190 ± 40 • C), based on the linear correlation of the eutectic temperatures with the lanthanides melting points, as has been recently reported [1].…”

“…The row of Ln-Ti phase diagrams may be divided into two groups: the first one, with a miscibility gap in the liquid state (from La to Gd), and the second one, of eutectic type (from Tb to Lu), as has been recently shown in [1]. So, the Gd-Ti and Tb-Ti systems are the border systems of each group according to this classification.…”

“…Binary alloys of titanium with lanthanides (Ln) are the boundary systems for multicomponent alloy materials for different technological applications: as high temperature in situ composite structural materials, as magnetic materials [1][2][3] etc. The row of Ln-Ti phase diagrams may be divided into two groups: the first one, with a miscibility gap in the liquid state (from La to Gd), and the second one, of eutectic type (from Tb to Lu), as has been recently shown in [1].…”

The melting diagram of the Ti–Dy–Si system in the Ti–Ti5Si3–Dy5Si3–Dy region

“…In our previous works [1,2], we have shown the positive influence of macroadditions of rare-earth metals R (Dy) on the mechanical properties of titanium alloys with silicon and tin. The elaboration of materials with desirable properties requires a theoretical basis, with information on the phase composition of the alloys, solubility of the components in coexisting phases, the character and temperatures of phase transformations, etc.…”