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Abstract An extruded Mg alloy was subjected to the screw rolling (SR) at different temperatures. The microstructure, corrosion behavior, and mechanical properties were analyzed. Electrochemical and immersion techniques were applied… Click to show full abstract
Abstract An extruded Mg alloy was subjected to the screw rolling (SR) at different temperatures. The microstructure, corrosion behavior, and mechanical properties were analyzed. Electrochemical and immersion techniques were applied for corrosion behavior analysis. Moreover, scanning Kelvin probe force microscopy (SKPFM) was utilized to measure the surface Volta-potential. It was found that an increase in SR temperature decreased the strength by increasing the grain size and reducing the intermetallics. However, the corrosion rate was decreased from SR at 220–300 °C due to the dissolution of the intermetallics into the matrix and increased for the sample SRed at 340 °C due to significant grain growth.
Journal Title: Journal of Alloys and Compounds
Year Published: 2020
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