An examination and characterization study of the aluminum alloy Duralumin (AA2014)

Duralumin, an aluminum alloy with strength and low size, was developed by German metallurgist Alfred Wilms in 1910. It is easy to work with, relatively soft, and ductile under normal circumstances. The alloy can be rolled, forged, and extruded to produce a wide range of products. Compared to aluminum, duralumin has a greater tensile strength, but it is less resistant to oxidation. Compared to pure aluminum, duralumin has a lower electrical conductivity and a higher thermal conductivity than steel. Initially used in stiff airship frames, its composition and heat-treatment procedures were maintained a military secret during the conflict. Duralumin can be cast, created, and manipulated with ease because of its low melting point. After annealing at temperatures ranging from 350 to 380 °C (662 to 716 °F), it is air-cooled. Now that the alloy has changed into a plastic, it is simple to deal with and shape into the appropriate portions. After that, the alloy is heated to 490 to 510°C (914 to 950°F) in order to increase its tensile qualities. After that, the duralumin is toughened by quenching. Three input factors, namely orientations (0,45,90 degrees) of the direction of rolling, strain rates (0.1,0.01,0.001), and temperatures (200,250,300), will be examined in relation to Duralumin AA2014. Yield strength, percentage of elongation, and the final strength of the samples were determined utilizing the Taguchi optimization technique, and plots of various variables were created utilizing Excel sheets in accordance with the positions of the points on the stress-strain plot. Specimen that have been post-tensiled will be SEM-examined and associated with elongation. Tensile lines will be used to analyze the work hardness and flow characteristics. The microstructural characteristics of the alloy will be used to explain the anisotropy in circulation as well as hardened behavior. The microstructures and post tensile will be examined using the optical and scanning microscopes. The X-ray deflection method will be employed to verify the crystal structure present in the cracked surfaces. Lastly, a correlation between the flow, work hardening behavior, and tensile properties of microstructures will be attempted to be established.