Nb and V-Containing Systems

Niobium (Nb) and vanadium (V) are common alloying elements in different types of steels with high affinity to form carbides and nitrides. The TCS Steel and Fe-alloys Database (TCFE) includes several Nb and V systems such as Fe-Nb-X (X=Al, B, C, Co, Cr, Mn, N, Ni, O, P, Si, V, Zn, Zr) and Fe-V-X (X= B, C, Cr, Mn, Mo, Nb, N, P). Two of these systems are shown below.

Fe-Mn-Nb

Isothermal section of Fe-Mn-Nb system at 1573 K.

Figure 1: Isothermal section of Fe-Mn-Nb system at 1573 K [2013aKhv].

Fe-Nb-V

Isothermal section of Fe-Nb-V system at 1573 K.

Figure 2: Isothermal section of Fe-Nb-V system at 1573 K [2013bKhv].

References

[2013aKhv] A. V. Khvan, B. Hallstedt, Thermodynamic assessment of Fe3Mn3Nb3N and Nb3C3Nsystems, Calphad. 40, 10–15 (2013).

[2013bKhv] A. V. Khvan, K. Chang, B. Hallstedt, Thermodynamic assessment of the Fe–Nb–V system, Calphad. 43, 143–148 (2013).