Effect of Laser Shock Peening on Electrochemical Corrosion Resistance of 2024 Aluminum Alloy

Laser shock peening is an innovation technique due to its significant improvement on the corrosion resistance of metallic materials. The study describes the effect of laser shock peening with multiple LSP impacts on the corrosion resistance of 2024 aluminum alloy in NaCl water solution with a mass fraction of 3.5% by using electrochemical technique. The experimental results reveal that LSP significantly reduces the corrosion rate of 2024 aluminum alloy, and as the number of impacts increases the corrosion rate decreases. The study demonstrates that LSP is an effective method to improve the electrochemical corrosion resistance of 2024 aluminum alloy.