journal article·2015-06

Influence of alloyed Al on the microstructure and corrosion properties of extruded Mg–8Sn–1Zn alloys

Hyeon Ju Kim, Beomcheol Kim, Soo-Min Baek, So-Dam Sohn, Hyung-Joon Shin, Hu Young Jeong, Chang Dong Yim, Bong Sun You, Heon-Young Ha, Sung Soo Park

Corrosion Science· Volume 95
Publisher page

Abstract

Abstract Microstructure and corrosion properties of extruded Mg–8Sn–1Zn alloys with varying Al contents were investigated. Microstructures of the extruded alloys mainly consisted of α-Mg grains and Mg2Sn particles in common. Addition of Al to the ternary alloy resulted in the formation of different types of Al–Fe-based intermetallic particles depending on Al contents. In 0.6 M NaCl solution, the extruded alloys with 1–3 wt% Al showed over 30 times higher corrosion rates than those containing less than 0.3 wt% Al; this discrepancy was attributed to the presence of Al5Fe2 particles acting as strong cathodic sites for H2 evolution during corrosion.
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Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Aluminum Alloys Composites Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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