Correlation between Mechanical Properties-Structural Characteristics and Cavitation Resistance of Cast Aluminum Alloy Type 5083

The aluminum alloy type 5083, which has high corrosion resistance, excellent weldability, and good strength, is widely used in shipbuilding, automotive, aerospace, and industrial construction. The present paper has the aim of establishing a possible correlation between mechanical properties, structural characteristics, and cavitation erosion properties of the 5083 alloy after applying different heat treatments. Different homogenization heat treatments (350 degrees C, 450 degrees C) were applied, each followed by cooling in air and artificial aging at different temperature (140 degrees C and 180 degrees C) with three maintenance periods, 1 h, 12 h, and 24 h. The experiments concerning cavitation resistance of the experimental samples were completed in accordance with ASTM G32-2016. The cavitation erosion resistance were determined either by analytical diagrams MDER (or MDE) vs. cavity attack duration, or by measuring the maximum erosion attack by stereomicroscopy and scanning electron microscopy. Finally, the best combination of heat treatments applied to cast aluminum products type 5083 is homogenization at 350 degrees C followed by artificial aging at 180 degrees C, at which the highest mechanical characteristics are obtained, a resilience of 25 J/cm(2), a grain size of 140-180 mu m, and a maximum depth of the erosion MDEmax around 14-17 mu m.

Automated summary

The aim of this study is to investigate the correlation between mechanical properties and cavitation erosion properties of aluminum alloy 5083 after different heat treatments. The best combination of heat treatments is homogenization at 350 degrees C followed by artificial aging at 180 degrees C, resulting in the highest mechanical characteristics and cavitation erosion resistance.