Wear behavior and corrosion properties of Age-hardened AA2010 aluminum alloy
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This study aims to investigate the wear and corrosion resistance after heat treatment of AA2010 alloy. AA2010 alloy was solutionized at 500 degrees C for 1 h, and then quenched in water at room temperature. Solution treatment was followed by aging treatment at 160 degrees C for 16, 18, and 22 h. Peak hardness was achieved at 18 h. Ball-on-disc wear test caused cold deformation and hence increased the hardness of the worn surface locally. The corrosion rate of heat treated AA2010 alloy was determined according to Tafel extrapolation method. Corrosion test was carried out in 3.5 wt.% NaCl solution at room temperature. The minimum corrosion rate was obtained in 18 h aged AA2010 alloy. For moderate wear resistance and good corrosion resistance, 18 h aging is recommended for AA2010 alloy. Both the intergranular and pitting corrosion mechanisms were observed on the corroded surface of the AA2010 alloy.