The influence of Fe-rich intermetallics on the tensile properties and fracture behaviour of Al-Mg2Si metal matrix composite

In present research, an attempt was made to investigate the influence of different concentrations of Fe (0.5, 1, 1.5, 2 and 3 wt.%) on the tensile properties and fracture behaviour of in situ Al-15wt.%Mg2Si metal matrix composite. The composite ingots were made by casting process. In this work, the matrix composite were characterized by optical microscopy, scanning electron microscopy (SEM) and tensile tests experiment. The obtained results depicted optimum Fe (1 wt.%) levels for improving tensile properties. In the point of fracture behaviour, Fe-containing specimens showed a brittle mode of failure and acceptable cohesion between Mg2Si and matrix.

کلیدواژه ها:

Al-Mg2Si composite ، Casting ، Tensile properties ، Brittle fracture