|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Technology 2018
||C-75: Microstructure and Mechanical Properties of Magnesium-metal Laminated Nanocomposites
||Soodabeh Azadehranjbar, Jeffrey Shield, Jian Wang
|On-Site Speaker (Planned)
Magnesium alloys have attracted interest recently due to high specific strength and low density which makes them a unique choice for lightweight applications in aerospace and transportation to reduce fuel consumption. Such applications, however, require an improvement in the strength and deformability of Mg alloys. The twinnability of Mg-metal nanocomposites can be reduced by introducing low energy, coherent interfaces which may favor non-basal slip in Mg layers. In this work, the interfaces are introduced via lamellar eutectic microstructures in Mg/metal (with metals Al and Ni) alloys. Rapid solidification produces layer thicknesses of tens to hundreds of nanometers. The microstructural studies are being performed using x-ray diffraction, scanning electron microscopy, transmission electron microscopy and electron backscatter diffraction. Moreover, in situ nanoindentation in SEM and TEM will be used to evaluate the deformability of Mg/metal nanocomposites. Mechanical properties-microstructure relationships are examined by nanoindentation and in situ micropillar compression test in a SEM.