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The microstructure and corrosion behavior of semisolid AZ91D magnesium alloys was investigated. The Semisolid microstructures are consisting of primary solid particles and continuous liquid phase around the solid. The Solid particles have the lesser in solute component, and liquid phase with the higher in solute component that is consisting of β-Mg17Al12 and re-solidification αMg. It has been demonstrated...
In the present work, Sn-Ag-Cu-Mg (SACM) and Sn-Ag-Cu-Mg-La (SACML) lead-free solders based on near eutectic Sn-Ag-Cu (SAC) alloys were designed and fabricated. Experiments were conducted to investigate the effect of alloying on the microstructure and physical properties in aspects of melting, wetting performance by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive...
Sn-Ag-Cu-Mg lead-free solders based on a eutectic Sn-Ag-Cu alloy were prepared by means of orthogonal experimental design. The melting temperature and the wettability of Sn-Ag-Cu-Mg solders were tested by differential thermal analysis (DTA) method and SAT solder checker respectively. Combined with the microstructure analysis, the influence of trace addition of Mg on the melting points and wettability...
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