The impact of a graded metallic spacer on the galvanic corrosion between magnesium and mild steel is investigated in this work using a COMSOL model based on a validated numerical model. A graded spacer of 4 mm thickness decreases the peak galvanic corrosion by 50% over a system without a spacer, and 37% over a system with an aluminum spacer. The impact of the electrochemical properties of spacer materials is also investigated.
Revised: February 12, 2020 |
Published: February 14, 2019
Citation
Spies K.A., V.V. Viswanathan, A. Soulami, Y. Hovanski, and V.V. Joshi. 2019.GALVANICALLY GRADED INTERFACE: A COMPUTATIONAL MODEL FOR MITIGATING GALVANIC CORROSION BETWEEN MAGNESIUM AND MILD STEEL. In Magnesium Technology 2019. The Minerals, Metals & Materials Series, edited by V. Joshi, et al, 135-144. Cham:Springer.PNNL-SA-138734.doi:10.1007/978-3-030-05789-3_21