| Abstract Scope |
Magnesium alloys, known for their low density, high specific strength, and excellent vibration damping, are widely studied for applications in transportation, aerospace, and future mobility. However, their poor corrosion resistance and flammability limit broader use. Recently, SEN alloys were developed by adding calcium (Ca) and yttrium (Y) to conventional AZ and AM series alloys, significantly enhancing corrosion and flammability resistance. SEN alloys are designated SENx, where "x" represents aluminum (Al) content. To expand the industrial application of SEN extrusions, it is crucial to assess their tensile, fatigue, and fracture properties. In this study, SENx alloys with Al contents of 1, 3, 6, 9, and 11 wt.% were extruded, and their tensile and high-cycle fatigue properties were analyzed. Microstructures of billets and extrusions were characterized using OM, SEM, and EBSD, and the correlations between Al content, microstructure, and mechanical properties were comprehensively examined. |