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- Title
Influence of cleaning modes on the microstructure and performance of 5083 alloy substrate.
- Authors
Li, Yunkai; Wang, Chunming; Mi, Gaoyang
- Abstract
In this study, the paint layer was removed on the surface of 5083 aluminum alloy using laser cleaning and mechanical grinding. The microstructure and performance of experimental samples were carefully investigated using scanning electron microscope, energy disperse spectroscopy and other methodologies. The results showed that compared with mechanical grinding, laser cleaning can improve the surface paint coating of aluminum alloy more effectively. The surface of the matrix formed uniformly distributed volcanic craters and small holes emerged at the spot junction after laser cleaning. The carbon and oxygen content on the substrate surface after laser cleaning was much lower than that after mechanical grinding. In addition, the corrosion resistance and coating adhesion of the substrate were obviously improved using laser cleaning. It was closely associated with refinement of the grains and reduction in surface roughness. We concluded that laser cleaning can be widely used to replace mechanical grinding in manufacturing on the premise of meeting industrial needs.
- Subjects
ALUMINUM alloys; SEMICONDUCTOR lasers; VOLCANIC craters; SCANNING electron microscopes; MICROSTRUCTURE; ALLOYS; LASER drilling
- Publication
Journal of Mechanical Science & Technology, 2021, Vol 35, Issue 9, p3943
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-021-0807-6