Wei Wang, Xiaoyu Wang, Weijun Liu, Fei Xing, Jing Wang. Effect of spot overlapping rate on surface area carbon and oxide cleaning quality of GH3030 alloy[J]. Infrared and Laser Engineering, 2023, 52(2): 20220164
- Infrared and Laser Engineering
- Vol. 52, Issue 2, 20220164 (2023)
Fig. 1. Surface morphology and composition of GH3030 superalloy. (a) Original plate; (b) Micro morphology; (c) Surface composition and content; (d) XRD pattern
Fig. 2. Schematic diagram of laser cleaning device
Fig. 3. Schematic diagram of laser scanning mode and spot overlapping
Fig. 4. Surface macro morphology before and after laser cleaning
Fig. 5. Surface morphology of the sample after laser cleaning with different spot overlapping rates. (a) Not cleaned; (b) 58.33%; (c) 62.5%; (d) 66.67%; (e) 70.83%; (f) 75%
Fig. 6. Surface micro morphology of laser cleaning samples under different spot overlapping rates. (a1) Not cleaned; (b1) 58.33%; (c1) 62.5%; (d1) 66.67%; (e1) 70.83%; (a2)-(e2) Corresponding high magnification images
Fig. 7. Schematic diagram of laser cleaning process
Fig. 8. Change trend of element content
Fig. 9. XRD pattern of GH3030 superalloy surface before and after laser cleaning
Fig. 10. Effect of laser spot overlapping rate on sample surface roughness
Fig. 11. Microhardness of substrate before and after laser cleaning. (a) Microhardness of different points; (b) Average microhardness
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Table 1. Chemical composition of GH3030 alloy
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Table 2. Cleaning experimental parameters
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Table 3. Content of surface elements under different spot overlapping rates
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