Understanding vapor and solution phase corrosion of lubricants used in electrified transmissions

In this study, the corrosion rates of commercially available lubricants that are found in electrified and conventional transmissions are measured in the vapor and solution phase across a range of operating temperatures using the wire corrosion test. The results of this study demonstrate the importance of performing vapor and solution phase corrosion measurements in real time across a range of temperatures and offers an efficient and cost-effective way to screen fluid chemistries over a range of potential corrosion situations. Corrosion measurements such as these, when interpreted correctly provide reliable data on which to base appropriate safety margins during the design phase.