Magnesium Silicon master alloy MgSi3% MgSi5% MgSi3% MgSi50% Tensile
strength, ductility and fracture of MgSi
Tensile tests were performed between 293–573 K in order to
investigate the mechanical properties of cast and extruded Mg-Si
alloys. For the cast materials, Mg-high Si (⩾ 10 wt%) alloys showed
lower values of the highest tensile strength at temperatures up to
373 K, as compared to pure Mg and Mg-low Si (<10 wt%) alloys,
whereas the strength at 573 K increased with increasing Si content.
The addition of aluminum and zinc to the alloys was effective in
increasing the strength. The fact that the Mg-high Si alloys showed
lower strength than the Mg-low Si alloys was because a high volume
of Mg2Si embrittled the Mg-Si alloys. Microstructural investigations
revealed that the particles of Mg2Si were coarse for the cast materials and fracture of the particles
was caused by deformation. The mechanical properties of the cast
materials were improved by hot extrusion. Microstructural
refinement by hot extrusion was responsible for the improvement of
the mechanical properties.
High performance Magnesium metal alloys:
ZK60, ZM2,ZM3,ZM6,ZM21,ZM31,WE43,WE57,WE94,MnE21,WZ73 etc.