Preparation and Investigation Mechanical Properties of Functionally Graded Materials of Aluminum-Nickel Alloys

Functionally graded material (FGM) is new generations of composite materials where the properties are changed linearly according to the change in composition. This research presents the design, fabrication and characterization of multi AlNi alloys incorporated into single functionally graded materials. By using powder metallurgy method, FGM (Al-Ni) have been successfully fabricated. FGMs samples consist of 5 layers where these layers start with Al on one side and end with Ni on the other side. In this study, the samples of FGM (Al-Ni) were produced consist of as follows with percent: (100 Al, 25 Ni-75Al, 50Ni-50Al, 75Ni-25Al and 100Ni) wt%. The samples were pressed with a load of 800 MPa and sintered at temperature 600°C for 3 hours. The hardness and compression test were performed to study the mechanical properties of FGM (Al-Ni) sample. Finally, FE-SEM images, has been taken for the sample to discuss the morphological aspects to validate the developed material.