illustration of molten salt (IMAGE) Penn State Caption Molten salt penetrates various metal alloys in different patterns; oxide growth can form similar 1D morphology. From top left, clockwise: stainless steel corroded in salt, iron-nickel-chromium alloy corroded in salt, chromium-manganese-iron-cobalt-nickel alloy oxidized in air and nickel-aluminum alloy oxidized in water. All the morphologies appear similar, covering partial grain boundaries. Credit Yang Yang/Penn State Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.