The effect of Mo from 25°C to 80°C on the pitting corrosion of the Co1.5CrFeNi1.5Ti0.5Mox alloys in chloride solutions was investigated. The values of critical pitting temperature (CPT) for the Mo-free alloy in 0.001, 0.01, 0.1, and 1 M sodium chloride (NaCl) are 80, 50, 30, and below 25°C, respectively. The values of CPT increase with the increase of Mo content, indicating that the pitting susceptibility to alloys decreases by increasing the content of Mo.

Subject
Pits, Transpassivation, Molybdenum alloys, Sodium chloride, Potential range, Sodium chloride solution, Superalloys, Electric potential, Pitting, Titanium alloys, Alloys, Chlorides, Corrosion potential
Keywords:
alloy, pitting corrosion, polarization
© 2011 NACE International
2011
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