Effect of molybdenum content on the microstructure and corrosion behavior of FeCoCrNiMox high-entropy alloys

Chunduo Dai, Tianliang Zhao, Cuiwei Du, Zhiyong Liu, Dawei Zhang

Table 4 Binding energies and contents of the main components extracted from XPS analysis.

Elements Compounds Binding Energy (eV) Mo0 alloy/Mo0.1 alloy Mo0 alloy (%) Mo0.1 alloy (%) Fe 2p3/2 Fe2O3 710.4 / 710.4 5.17 9.42 FeOOH 711.8 / 711.8 19.85 23.19 Cr 2p3/2 Cr2O3 575.9 / 576.2 18.67 20.25 Cr(OH)3 577.1 / 577.1 35.97 28.33 Ni 2p3/2 NiO 853.5 / 853.9 7.32 1.50 Ni(OH)2 855.8 / 855.5 3.61 5.30 Co 2p3/2 Co3O4 780.1 / 779.4 7.78 2.36 Co(OH)2 782.1 / 781.0 1.63 5.80 Mo 3d Mo4+ 3d3/2 231.6 — 3.85 Mo4+ 3d5/2 228.5 — Mo6+ 3d3/2 235.6 — Mo6+ 3d5/2 232.4 —