The Effect of Severe Plastic Deformation on the Microstructure and Mechanical Properties of Composite from 5056 and 1580 Aluminum Alloys Produced with Wire Arc Additive Manufacturing
Aydar Mavlyutov,
Alexey Evstifeev,
Darya Volosevich,
Marina Gushchina,
Artem Voropaev,
Oleg Zotov,
Olga Klimova-Korsmik
Affiliations
Aydar Mavlyutov
Mathematics and Mechanics Faculty, Saint Petersburg State University, Saint Petersburg 198504, Russia
Alexey Evstifeev
Mathematics and Mechanics Faculty, Saint Petersburg State University, Saint Petersburg 198504, Russia
Darya Volosevich
World-Class Research Center, State Marine Technical University, Saint Petersburg 190121, Russia
Marina Gushchina
Mathematics and Mechanics Faculty, Saint Petersburg State University, Saint Petersburg 198504, Russia
Artem Voropaev
World-Class Research Center, State Marine Technical University, Saint Petersburg 190121, Russia
Oleg Zotov
Institute of Metallurgy, Mechanical Engineering and Transport, Peter the Great Saint Petersburg Polytechnic University, Saint Petersburg 195251, Russia
Olga Klimova-Korsmik
World-Class Research Center, State Marine Technical University, Saint Petersburg 190121, Russia
In this study, a composite with alternate layers of 5056 and 1580 alloys was manufactured with wire arc additive manufacturing technology. It is shown that increased strength characteristics of composite material can be obtained with deformation treatment using a high-pressure torsion (HPT) technique. The microstructure and mechanical properties of the HPT-processed material in different structural states were investigated. The HPT-processed material exhibits a high value of ultimate tensile strength (~770 MPa) but low ductility. Short-term annealing at 250 °C and additional deformation with HPT to 0.25 of revolution at room temperature resulted in a slight decrease in the material’s strength to ~700 MPa but provided ductility of ∼9%. Physical mechanisms to improve plasticity in correlation with microstructure evolution are discussed.
