|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||Effect of Extrusion Ratio on Microstructure and Resulting Mechanical Properties of Mg Alloys with LPSO Phase
||Klaudia Horváth, Daria Drozdenko, Gerardo Garcés, Kristián Máthis, Patrik Dobroň
|On-Site Speaker (Planned)
Magnesium alloys containing zinc (Zn) and yttrium (Y) were extruded with a different extrusion ratio at 350°C. In all alloys, Zn and Y formed long period stacking ordered phase (LPSO) which was investigated by transmission electron microscopy (TEM). The texture of the alloys was measured by X-ray diffraction. Analysis of the microstructure was done by light microscopy, where LSPO phase in all alloys was found elongated in the extrusion direction (ED). Afterwards, the mechanical properties of extruded Mg alloys were investigated during compression loading at room temperature and at a constant strain rate of 10-3 s-1. The samples with a height of 15mm and a diameter of 10 mm were compressed along extrusion direction. Concurrently with the deformation tests, the acoustic emission (AE) response of the specimens was recorded. The results of the AE experiments were proved by the microstructure investigations.