Influence of vanadium content and colling rate on the stereological parameters of phases in the structure of Fe-C-Cr-V alloys

Abstract

In this paper, the influence of vanadium content and cooling rate on the stereological parameters of phases present in the structure of Fe-C-Cr-V alloys. Experimental results indicate that both vanadium content and cooling rate affects the crystallization process in Fe-C-Cr-V alloys. The changes in the volume fraction, size and morphology of the present phases in the structure of Fe-C-Cr-V alloys, suggest that with increased vanadium content, the alloy composition approaches the eutectic composition in the fourcomponent Fe-C-Cr-V system, causing a decrease of the solidification temperature interval.

U ovom radu ispitivan je uticaj sadržaja vanadijuma i brzine hlađenja na stereološke parametre faza prisutnih u strukturi Fe-C-Cr-V legura. Eksperimentalni rezultati pokazuju da vanadijum, kao i brzina hlađenja, utiču na tok kristalizacije Fe-C-Cr-V legura. Promene zapreminskog udela, veličine i morfologije faza prisutnih u strukturi Fe-C-Cr-V legura, ukazuju da sa povećanjem sadržaja vanadijuma sastav legure se približava eutektičkom u četvorokomponentnom Fe-C-Cr-V sistemu, što utiče na smanjenje temperaturnog intervala očvršćavanja.