HPC MSU

Publication Abstract

Comparison of Corrosion Pitting Under Immersion and Salt-Spray Environments on an As-Cast AE44 Magnesium Alloy

Martin, H. J., Horstemeyer, M., & Wang, P. (2010). Comparison of Corrosion Pitting Under Immersion and Salt-Spray Environments on an As-Cast AE44 Magnesium Alloy. Corrosion Science. Elsevier. 52, 3624-3638.

Abstract

The corrosion mechanisms of pitting, intergranular corrosion, and general corrosion were quantified using an AE44 magnesium alloy subjected to immersion and salt spray environments. The two environments showed similar trends with respect to weight loss and thickness loss, although the immersion environment induced greater amounts of weight loss of magnesium. With respect to the corrosion mechanisms, the two environments showed definitive trends, owing to the continuous presence of water in the immersion environment allowing more and larger pits to form as compared to the salt spray environment. The immersion environment was more deleterious than the salt spray environment for magnesium.