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This document studies scanning micro-arc oxidation (SMAO) technology applied to repair damaged regions on the surface of 2024 aluminum alloy samples. SMAO was performed using a low-power pulsed micro-arc oxidation power supply and an internal liquid tubular cathode. Analysis found the SMAO ceramic coating was mainly composed of α-Al2O3 and γ-Al2O3, with a dense inner layer and porous outer layer containing micropores and microcracks. Nanoindentation testing showed the hardness and elastic modulus of the coa

Author

Cicero Gomes de Souza

Language

EN