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A constitutive model for densification during spark plasma sintering was adapted and applied to an aluminum–magnesium alloy to determine the effect of increasing sample thickness on residual porosity after sintering. The contributions of electromigration, sintering stresses and external load (on creep, diffusion and yielding) were all taken into consideration, as well as the effect of pressure on...
The high strength and increased electrical conductivity of the Al alloys are highly desirable for their applications in power transmission lines. However, high strength and high electrical conductivity are mutually exclusive in metallic materials. A novel nanostructuring strategy is reported that achieves Al–Mg–Si alloys with superior tensile strength and enhanced electrical conductivity. The new...
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