Standstill Corrosion and Spall Propagation in Rolling Bearings

Some surface-initiated related bearing failures have their source in standstill corrosion. This can be an important issue transportation, energy, pulp and paper other industries where bearings run long journeys generating relatively high temperatures or being contact with humidity then they stop overnight were get cold, this way producing condensation of around the contacts. generate pitting corrosion (depending on environment). Pitting very mild without consequences but sometimes it is small cracks spalls. When runs again, these surface defects will triggered by rolling fatigue propagate, eventually a large spall failure. The present investigates interaction phenomenon proposes engineering concept model main parameters are investigated giving some indication safe unsafe combinations for propagation from