R. P. Leshchinskaya

TL;DR: The results obtained only partially confirm the assumption that titanium nitrides and oxides impair the columnar solidification of YuNDKT alloys, since titanium oxides are not observed in the presence of aluminum, and titanium carbonitrides (nitrides) exist in the alloys without additions of sulfur and carbon as discussed by the authors.

TL;DR: In alloys of the YuNDKT type, the chemical composition of the "overheating" phase is the same as that of αγ phase as mentioned in this paper, and the phase impoverished in iron and enriched in titanium is not the overheating phase but a region of the matrix bordering this phase.