CORROSION 4 (IMAGE) Rice University Caption An illustration shows the simple process of combining powdered sulfur and selenium into a compound able to protect mild steel from the elements. Credit Ajayan Research Group/Rice University Usage Restrictions NONE License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.