Numerical investigation of the AE44-mild steel galvanic structural joint

N. Muthegowda, B. Gholami Bazehhour, Kiran Solanki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Here, we present an experimentally validated numerical model for an AE44 (Magnesium alloy) and mild steel galvanic couple subjected to a mechano-electrochemical process. The model is capable of tracking moving boundaries of the corroding constituent of the couple by employing Arbitrary Langrangian Eulerian (ALE) finite element method. Results show that when an anode is under a purely elastic deformation, there is no significant effect of mechanical loading on the electrochemical galvanic process. However, when the applied tensile load is sufficient to cause a plastic deformation, the local galvanic corrosion activity at the vicinity of the interface is increased remarkably. The effect of other factors, such as electrode area ratios, electrical conductivity of the electrolyte and depth of the electrolyte, are studied. It is observed that the conductivity of the electrolyte significantly influences the surface profile of the anode, especially near the junction.

Original languageEnglish (US)
Title of host publicationMagnesium Technology 2016 - Held During TMS 2016
Subtitle of host publication145th Annual Meeting and Exhibition
EditorsAlok Singh, Kiran Solanki, Michele Viola Manuel, Neale R. Neelameggham
PublisherMinerals, Metals and Materials Society
Pages275-278
Number of pages4
ISBN (Electronic)9781119225805
DOIs
StatePublished - 2016
EventMagnesium Technology 2016 - TMS 2016: 145th Annual Meeting and Exhibition - Nashville, United States
Duration: Feb 14 2016Feb 18 2016

Publication series

NameMagnesium Technology
Volume2016-January
ISSN (Print)1545-4150

Other

OtherMagnesium Technology 2016 - TMS 2016: 145th Annual Meeting and Exhibition
CountryUnited States
CityNashville
Period2/14/162/18/16

Keywords

  • Galvanic corrosion
  • Joints
  • Magnesium

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Muthegowda, N., Bazehhour, B. G., & Solanki, K. (2016). Numerical investigation of the AE44-mild steel galvanic structural joint. In A. Singh, K. Solanki, M. V. Manuel, & N. R. Neelameggham (Eds.), Magnesium Technology 2016 - Held During TMS 2016: 145th Annual Meeting and Exhibition (pp. 275-278). (Magnesium Technology; Vol. 2016-January). Minerals, Metals and Materials Society. https://doi.org/10.1002/9781119274803.ch54