The eutectic alloy in the Nb—Ti—Al—Cr—Zr system


I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Electron Microscopy and Strength of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2017, #23


The influence of the chemical composition of the alloys of the Nb—Cr—Ti—Al—Zr— Mo—Si system on their phase composition was studied by metallography, X-ray phase analysis, differential thermal analysis, and the study of the influence of the cooling rate on the crystallization features. The possibility of formation of single-phase multicomponent alloys and alloys of a eutectic composition with a sharp decrease in the melting temperature is shown. It is established that the feature of eutectic multicomponent alloys is the propensity to nonequilibrium crystallization with the formation of dendrites enriched in refractory components. Full text download