Xiaoguang Zheng, Yunfei Ding, Huijun Wu. Surface Wettability of Aluminum Alloy Surface by Laser Etching After Heat Treatment[J]. Laser & Optoelectronics Progress, 2020, 57(15): 151406
- Laser & Optoelectronics Progress
- Vol. 57, Issue 15, 151406 (2020)
Fig. 1. Laser etched pattern
Fig. 2. SEM images of aluminum alloy surface by laser etching under different laser power densities. (a) Power density is 371.55 J/cm2; (b) power density is 583.86 J/cm2; (c) power density is 796.17 J/cm2
Fig. 3. Three-dimensional contour images of aluminum alloy surface by laser etching under different laser power densities. (a) Power density is 371.55 J/cm2 (Ra=7.503 μm); (b) power density is 583.86 J/cm2 (Ra=8.167 μm); (c) power density is 796.17 J/cm2 (Ra=8.793 μm)
Fig. 4. SEM images of aluminum alloy surface by laser etching before and after heat treatment. (a) Before heat treatment; (b) after heat treatment
Fig. 5. Water contact angle of aluminum alloy surface by laser etching. (a) Before heat treatment; (b) after heat treatment
Fig. 6. Water droplet contact process before heat treatment
Fig. 7. Water droplet contact process after heat treatment
Fig. 8. XPS images of aluminum alloy surface by laser etching. (a) Before heat treatment; (b) after heat treatment
Fig. 9. XRD image of aluminum alloy surface by laser etching before and after heat treatment
Fig. 10. Infrared spectra of aluminum alloy surface by laser etching before and after heat treatment
Fig. 11. Peak split chart of the XPS C 1s peak. (a) Before heat treatment; (b) after heat treatment
Fig. 12. Changes of various groups on the aluminum alloy surface by laser etching before and after heat treatment
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Table 1. Contact angle (CA) and slide angle (SA) of aluminum alloy surface by laser etching
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