|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||Role of Mechanical Loads on the Corrosion Behavior of Mild-Steel and AE-44 Structural Joint
||Ilaksh Adlakha, Benyamin Gholami, Nitin Muthegowda, Kiran N. Solanki
|On-Site Speaker (Planned)
Here, we present an experimentally validated numerical model for an AE44 (Magnesium alloy) and mild steel galvanic couple subjected to a mechano-electrochemical process. In order to examine the effect of mechanical loads on the corrosion behavior, the galvanic couple was subjected to static and fatigue loads. Results show that, a remarkable increase was observed in the pit depth near galvanic interface, due to the presence of plastic strain within the anodic electrode. In the case of both mechanical loading scenarios, an increase in localized corrosion around the galvanic junction was observed, however, it was far more severe in the case of fatigue loading. Furthermore, the effect of electrolyte depth and electrode surface area ratio on the galvanic corrosion behavior was studied. The decrease of electrolyte depth was found to promote the localized corrosion behavior. In the case of smaller cathodic surface areas, the localized corrosion process was intensified.