Microstructural Evolution in the Co-Extruded Aluminium-Titanium Bi-Metal Composite

Aluminum-titanium alloys play a vital role in the aerospace and automotive industries. This work makes use of Al-6061 and grade 2, which possess good toughness, good surface finish, and medium to high strength. Here, aluminum and titanium bi-metal co-extrude to predict the mechanical property and analyze the feasibility in use of using this bi-metal in engineering applications. Holes are made in the Al-6061 alloy, and titanium rods are inserted in these holes. Aluminum and titanium are subjected to hot extrusion at a 2:1 ratio. The initial diameter of work workpiece is 30mm, and after extrusion, it is reduced to 15mm. The metallographic analysis is carried out after the resultant metal has been sectioned.