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Abstract

Research & Development in Material Science

Influence of β Phase on Corrosion Behavior of Mg-Al-Zn Alloys

  • Sennur CANDAN1* and Ercan CANDAN2

    1Department of Biomedical Engineering, Necmettin Erbakan University, Konya, Turkey

    2Department of Metallurgy and Materials Engineering, Necmettin Erbakan University, Konya, Turkey

    *Corresponding author: Sennur CANDAN, Department of Biomedical Engineering, Necmettin Erbakan University, Konya, Turkey

Submission: March 30, 2022;Published: April 19, 2022

DOI: 10.31031/RDMS.2022.16.000900

ISSN : 2576-8840
Volume16 Issue5

Abstract

There are numerous studies to understand the corrosion behaviors of AZ series Mg alloys and the results on the role of β phase in the corrosion of the AZ series Mg alloys are yet contradictory. In the literature, the β phase inhibits the corrosion by barrier effect or vice versa promotes corrosion by micro galvanic coupling. This review focuses on the influence of microalloying elements and the solidification rate on the β phase morphology, affecting the corrosion behavior of AZ series Mg alloys. Additionally, the oxide film-β phase relationship on the surface of the alloys also has been evaluated on their corrosion properties.
The review showed that the contradictory evaluations of the researchers about why the β phase prevents corrosion with the barrier effect or vice versa, why the β phase increases corrosion with micro galvanic coupling, attributed to variations in the production methods and related β phase morphology in microstructure.

Keywords: Mg alloy; AZ series; Intermetallic; Corrosion

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