Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Background The severe plastic deformation approach and its well-known cyclic extrusion compression (CEC) method have been established as a powerful tool for fabricating bulk ultrafine-grained metals alloys with improved properties. Objective This study focused on the microstructure evolution, hardness behavior, corrosion properties of CEC-processed Al5052 up to four passes compared initial annealed state. Methods samples at different pass numbers were examined experimentally by EBSD analyses, measurements, resistance. Results Substantial grain refinement was attained from ~23 ?m sample ~0.8 in sample. In addition, values considerably increased 75.7% after value 80 HV. increment led more uniform dispersion values. Furthermore, production stable protective oxide layers UFG structure improvement electrochemical response rate reduction 1.49 1.02 mpy, respectively, final samples. fact, manifested large-sized deeper pits than CECed due potential attack chlorine ions that finally deteriorates performance. Conclusions CEC is an efficient improve mechanical materials substantial microstructural changes along enhancement behavior because presence small-sized shallow pits.