Fig. 4: Pareto optimal analysis of quaternary alloys. | npj Computational Materials

Fig. 4: Pareto optimal analysis of quaternary alloys.

From: Computational discovery of ultra-strong, stable, and lightweight refractory multi-principal element alloys. Part I: design principles and rapid down-selection

Fig. 4

Plots of a metastable YS, b metastable SYS, c equilibrium YS, and d equilibrium SYS versus density for all quaternary systems that are 100% BCC in equilibrium at 1300 K. Points where the alloy has one (two) BCC phase(s) in equilibrium are indicated by a blue open (red filled) circle, and the Pareto optimal front is outlined in black. Alloys of interest are identified by filled squares, gray for dual-phase and green for single-phase alloys. Gold × symbols highlight computed results for the Cr-Mo-Nb-V system, with labeled magenta triangles indicating equiatomic CrMoNbV (T = theory). Labeled cyan stars are experimental data from refs. 20,37,40 (E = experiment).

Back to article page