Abstract
Data are presented on corrosion rates of 3–25% Mo‐Ni alloys in 10% 
at 25°, 70°C, and the boiling point. Data also include measurements of corrosion potentials, critical current densities for passivity, anodic polarization in the active potential region, and hydrogen overvoltage. Molybdenum‐nickel alloys, like other passive metals, corrode under anodic control, but their corrosion potentials, unlike values for the passive chromium alloys, are more active than the corresponding Flade potentials at which a passive film is established. Corrosion resistance derives apparently from a sluggish anodic dissolution reaction, such as a low rate of ion hydration. Chemical properties of Mo are imparted to Ni or to Ni plus Fe alloys at critical ratios related to electron configuration of the component metals.