Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloys

Mechanical behaviour of eutectic Al-Si alloys with different Si particle topology and morphology modified by heat treatment has been studied. The alloy chosen was a model system for understanding the influence of morphological and topological features on macroscopic mechanical properties. The heat treatment was used to transform a percolated structure of Si platelets and needles into an ensemble of well separated spheroidised particles. …