Effect of LPC on the Corrosion Behavior of AZ81 Magnesium Alloy

Abstract:

The corrosion behavior of AZ81 magnesium alloy with the LPC addition has been investigated in this paper. The results show that with the addition of 1-5% LPC, the microstructure of AZ81 magnesium alloy is remarkably refined, and the spotted, high-melting point phase Al-RE intermetallic compounds is found in the alloy. The corrosion behavior of AZ81 alloy decreases firstly and then increases sharply with the increase of LPC addition. When the content of LPC is 2.5%, AZ81 magnesium alloy shows the lowest corrosion rate. The corrosion rates in 3.5%NaCl solution are always higher than those in 0.5%NaCl solution. The corrosion products from the surface are mainly composed of Mg (OH) ₂ compositions.

• Periodical: Advanced Materials Research (Volumes 998-999)
• Pages: 43-46
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.998-999.43
• Online since: July 2014
• Authors: Jun Chen*, Quan An Li, Xing Yuan Zhang
• Keywords: Corrosion Behavior, LPC, Magnesium Alloy, Microstructure

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