Influence of Microstructure on the Mechanical and Corrosion Response of a Friction Stir-Extruded WE43 Magnesium Rod

Friction stir extrusion (FSE) was used with WE43 Mg to create a rod hybrid microstructure. The rod’s electrochemical corrosion response characterized in Hank’s balanced salt solution at 37 ± 1 °C. showed refined grains near the edge, while coarse were observed center. A larger fraction of precipitates edge possibly hindering grain growth. and presence regions resulted higher hardness owing confluence precipitate hardening solid–solution strengthening. Texture analysis cross-section exhibited basal texture, perpendicular direction populating outer surface. In compression, near-base material yield strength (225.6 MPa) good combination compressive (357.5 ductility (~17.7%). sensitive variations size, distribution between core regions. Removal region formation more stable protective film an increase immersion period. results from study establish ability FSE process tailor microstructure thereby influencing mechanical properties rate alloy.