About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Cast Shop Technology
|
Presentation Title |
Influence of Alloying Additives on the Electrochemical Behavior of Cast Al-5Zn Alloy |
Author(s) |
Mohamed Eissa Moussa , Hoda Hussien, Shimaa El-Hadad, Madiha Shoeib |
On-Site Speaker (Planned) |
Shimaa El-Hadad |
Abstract Scope |
Cast Al-5wt. % Zn alloys are well known for their cathodic protection applications as sacrificial anodes. Based on the previous studies, the electrochemical behavior of these anodes can be enhanced by addition of alloying elements. These elements can be modifiers as magnesium (Mg), barium (Ba), (Cd) and etc. or they can act as depassivators like in the case of Indium (In), tin (Sn), titanium (Ti) and thallium (Tl). In the current investigation, alloying additives includes Mg and Sn were added during melting of Al-5wt.%Zn alloy and the samples were immersed in a sodium chloride solution to investigate their behavior as sacrificial anodes. It was observed that addition of Sn or Mg can increase the corrosion rate of the base alloy if added in certain amounts, exceeding the amount of addition results in adverse effects. |
Proceedings Inclusion? |
Planned: Light Metals |