Corrosion test

After the thrust profile test was completed, I did not have enough time to dismantle the experimental set up, so I left it in our lab for a day until I could return to it. Upon extraction, I was much surprised to find the level of corrosion present on the DC-DC converter and 2 of the 3 shaft couplers on the motors.

 Corrosion on the DC-DC converter

Corrosion on the shaft coupler

The rate of corrosion is really the interesting part of this test. The parts were likely submerged for 36 hours and look as if they are starting to grow barnacles. In order to prevent this, I believe we should apply a coat of acrylic paint to surfaces which will be continuously exposed to the water.

If it works for ships, it should work for us.