Size effects in aluminium alloy castings

Microstructure and mechanical properties of rapidly solidified/powder metallurgy Mg–6Zn and Mg–6Zn–5Ca at room and elevated temperatures

“…For Mg, K is in the range of 200-300 MPa lm 1/2 , which is four times higher than that of Al [38,39]. So for magnesium alloy with a close-packed hexagonal lattice (HCP), grain refinement can increase the strength of the alloy at room temperature substantially.…”

Microhardness and corrosion properties of hypoeutectic Al–7Si alloy processed by high-pressure torsion

“…However, one of the drawbacks for these hypoeutectic Al-Si alloys is their low fracture toughness and strength due to a microstructure consisting of a primary aluminum phase and an eutectic silicon second-phase present between the aluminum dendrites. The homogeneity and refinement of microstructure by deformation processing have shown to be effective in improving the mechanical properties of hypoeutectic Al-Si alloys [8,9].…”

Effects of grain size and heat treatment on the tensile properties of Mg–3Nd–0.2Zn (wt%) magnesium alloys

“…Since many of structural applications involve high stresses, the plastic deformation and tensile properties of these alloys are critical for their design and manufacturing [3,4]. Similar to other cast alloys, the tensile properties and fracture behavior of magnesium alloys strongly depend on microstructure, including grain structure and precipitates, which are determined by their composition, casting and heat treatment conditions [5][6][7][8]. It is important to understand the process-microstructureproperty relationships of cast magnesium alloys for their better structural applications.…”