Investigation on the Surface Properties of 5A12 Aluminum Alloy after Nd: YAG Laser Cleaning
Source abstract
Abstract
The surface of the aluminum alloy is prone to oxidation, which in turn affects the quality of the weld. The 5A12 aluminum alloy was cleaned by acousto-optic Q-switched diode-pumped Nd:YAG laser and the effects of different laser powers and different cleaning speeds on the surface roughness, microstructure, element content, microhardness, residual stress and corrosion resistance of aluminum alloy were investigated. The results show that when the power is 98W and the cleaning speed is 4.1 mm/s, the effect of Nd: YAG laser on the removal of oxide film on 5A12 aluminum alloy surface is the most effective. After laser cleaning, the smoothness and strength of aluminum alloy surface can be effectively improved. However, as a major element in 5A12 aluminum alloy, the content of magnesium decreased. At the same time, the residual tensile stress was generated on the surface of the aluminum alloy after cleaning, and the corrosion resistance slightly decreased.
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Research context
OpenAlex topics: Surface Treatment and Residual Stress · High Entropy Alloys Studies · Laser Material Processing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, University of Jinan, Jinan 250022, China
Laser institute, Qilu university of Technology (Shandong Academy of Sciences), Jinan 250014, China
Funding
the National Natural Science Foundation of China · Shandong Key Research and Development Plan · Taishan Scholar Engineering Special Funding
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