Effect of element Er on microstructure and corrosion behavior of Mg-1.5Sn-xEr alloy
Source abstract
Abstract
The corrosion behavior of the Mg-1.5Sn- x Er alloys ( x = 0, 0.5 and 1 wt%) were investigated in 3.5 wt% NaCl solution. Results indicate that the corrosion resistance of Mg-1.5Sn alloy increases with the content of Er element. Mg-1.5Sn-1Er alloy exhibits the best corrosion resistance, which is attributed to the stable and uniform corrosion products films generated on the surface. The existence of SnO 2 and Er 2 O 3 enhances the protection of the corrosion products films, and this enhancing effect could overwhelm the weakening effect of the grain refinement and Mg 2 Sn phase on the corrosion resistance.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties
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