Experimental investigation of phase equilibria in the Zr–Nb–Cr system at 1573 K and 1373 K

Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section

“…and are consistents in relation to isothermal sections of other similar systems, Cr−Nb−Zr (1300 °C) [52] , Cr−Nb−Ti (1300 °C) [55] , Cr−Nb−Ta (1500 °C) and Cr−Hf−Ti (1200 °C) [59] (Figures 5a-5d).…”

“…With regard to the single phase fields (Cr), (Hf,Nb)-ht, (C15) and the two-phase equilibria (Cr)-( C15) and (C15)-(Hf,Nb)-ht, the similarities are clear with the proposals for Cr−Nb−X (X -Zr, Ti, Ta) [52,55,57] , which show the (Cr) and (Nb,X)-bcc fields and in the intermediate region the pseudobinary C15 with several solubility ranges (Figures 5a-5c). In Cr−Nb−Zr isothermal section at 1300 °C [52] , Figure 5a, particularly, there is a noticeable increase in the solubility range of (C15) in intermediate compositions, advancing over the (C15)-(Zr,NB)bcc field, as well as (C15) advances over the (C15)-(Hf,Nb)-ht in Cr−Hf−Nb system.…”

“…In addition, the knowledge of specific systems, such as Cr−X (X -Ta, Ti, Zr) [42][43][44][45] , Hf−X (X -Ta, Ti) [46,47] , Zr−X (X -Nb, Ti) [48,49] , Cr−Nb/Hf−X (X -Al, Ta, Ti, Zr) [50][51][52][53][54][55][56][57][58][59] (Figures 5 and 6) can contribute to understanding the Cr−Hf−Nb system, due to important similarities, such as the presence of intermetallic Laves phases.…”

Experimental investigations and thermodynamic modelling of the Cr–Nb–Sn–Zr system

“…The Cr-Nb-Zr system has been experimentally investigated by Kim et al [45], Kornilov et al. [46] and Wang et al [47]. Kim et al [45] and Wang et al [47] have measured the isothermal section at 1100 °C and 1300 °C in the Cr-rich part.…”

“…[46] and Wang et al [47]. Kim et al [45] and Wang et al [47] have measured the isothermal section at 1100 °C and 1300 °C in the Cr-rich part. Their measurements are in a very good agreement with each other.…”