Isothermal section at 850°C of the Ti–Dy–Al system in the Ti–TiAl–DyAl2–Dy region

The Structural and Phase State of the TiAl System Alloyed with Rare-Earth Metals of the Controlled Composition Synthesized by the “Hydride Technology”

“…The choice of these metals as alloying microadditions in the alloys under study is conditioned by a number of positive effects. In particular, metals as an effective modifier of the cast structure [15][16][17][18][19][20][21][22] possess an increased affinity with oxygen, which in turn leads to a substantial decrease in the amount of oxygen in the alloy and, as a consequence, to an increase in low-temperature plasticity because of the reduction in the number of barriers in the form of oxygen atoms, which decelerate the dislocations motion during deformation.…”

“…To improve the mechanical properties of γ-TiAl alloys, their alloying with rare-earth elements is of interest. It is known that [15][16][17] the introduction of rare-earth elements (La, Er and Dy) into titanium and intermetallic alloys based on γ-TiAl can lead to the improvement in machinability in the as-cast state, owing to refinement of the structure, to increased heat-resistance and refractoriness, and in the γ-TiAl alloys, in some cases, to the enhancement of the technological plasticity at elevated temperatures.…”

Influence of surface modifications of a nanostructured implant on osseointegration capacity – preliminary in vivo study

“…As can be seen, pure hexagonal phases corresponding to the reference standard of the titanium (ICSD – 426981) are observed for all samples. 28 …”

“…As can be seen, pure hexagonal phases corresponding to the reference standard of the titanium (ICSD -426981) are observed for all samples. 28 The quality of structural Rietveld renement was checked by R-values to detect the consistency with a hexagonal structure. However, a difference in the observed and calculated patterns is the best method to evaluate the Rietveld renement.…”