Zengin, HueseyinAri, SonerTuran, Muhammet EmreHassel, Achim Walter2024-09-292024-09-2920231996-1944https://doi.org/10.3390/ma16083075https://hdl.handle.net/20.500.14619/7381The current investigation involved casting the Mg-2.2Gd-2.2Zn-0.2Ca (wt%) alloy (GZX220) through permanent mold casting, followed by homogenization at 400 degrees C for 24 h and extrusion at 250 degrees C, 300 degrees C, 350 degrees C, and 400 degrees C. Microstructure investigations revealed that alpha-Mg, Mg-Gd, and Mg-Gd-Zn intermetallic phases were present in the as-cast alloy. Following the homogenization treatment, a majority of these intermetallic particles underwent partial dissolution into the matrix phase. alpha-Mg grains exhibited a considerable refinement by extrusion due to dynamic recrystallization (DRX). At low extrusion temperatures, higher basal texture intensities were observed. The mechanical properties were remarkably enhanced after the extrusion process. However, a consistent decline in strength was observed with the rise in extrusion temperature. The corrosion performance of the as-cast GZX220 alloy was reduced by homogenization because of the lack of corrosion barrier effect of secondary phases. A significant enhancement of corrosion resistance was achieved by the extrusion process.eninfo:eu-repo/semantics/openAccessmagnesiumhomogenizationextrusiondynamic recrystallizationtensile propertiescorrosionArticle10.3390/ma160830752-s2.0-85156175984837109911Q216WOS:000977330400001Q1