Laves phase maps (a) VEC versus <R> = R<Nb> + R<Cr> and (b) R<Nb>/R<Cr> versus <R> = R<Nb> + R<Cr>. Lavender, pink, blue, red, green and dark orange squares represent the same data as in Figure 2a. The triangles represent data for (Nb,Ti)(Cr,Si,Al,Sn)2 and (Nb,Ti,Mo,Hf)(Cr,Si,Al,Sn)2 (light orange), and (Nb,Ti)(Cr,Si,Al,Ge)2 (light green); diamonds represent data for (Nb,Mo)(Cr,Si,Al)2 (yellow), (Nb,Ti,Ta)(Cr,Si,Al)2, (Nb,Ti,Hf)(Cr,Si,Al)2, (Nb,Ti,Mo,Hf)(Cr,Si,Al)2 (red), (Nb,Ti,Hf)(Cr,Si,Ge)2 (light green), (Nb,Hf)(Cr,Si,Sn)2 and (Nb,Ti,Hf)(Cr,Si,Sn)2 (dark orange), (Nb,Ti,Mo,W,Hf)(Cr,Si,Sn)2 (brown).