Sifei Ai, Feisen Wang, Qian Wang, Yinfen Cheng, Ting Wen, Hui Chen. Laser Cleaning Mechanism and Process of High-Temperature-Oxidized Titanium Alloy[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2114012
- Laser & Optoelectronics Progress
- Vol. 58, Issue 21, 2114012 (2021)
Fig. 1. TC4 titanium alloy workpiece after high temperature oxidation
Fig. 2. Micromorphologies of oxide layer on the surface of TC4 titanium alloy
Fig. 3. EDS spectrum of surface oxide layer of TC4 titanium alloy
Fig. 4. XRD analysis of surface oxide layer on TC4 titanium alloy
Fig. 5. Molten pool movement and molten splash recorded in the high speed camera equipment. (a) t=441.944 ms;(b) t=442.222 ms; (c) t=442.500 ms; (d) t=443.056 ms
Fig. 6. Removal of oxide layer recorded in the high speed camera equipment. (a) t=265.833 ms; (b) t=1356.667 ms
Fig. 7. Macroscopic morphologies of the sample surface after laser cleaning with A1 and A2 parameters. (a) S1 sample; (b) S2 sample
Fig. 8. Boundary microstructure and EDS line scanning curves of S1 sample
Fig. 9. Boundary microstructure and EDS line scanning curves of S2 sample
Fig. 10. Macromorphologies of samples treated by traditional cleaning methods.
Fig. 11. Micromorphologies of samples treated by traditional cleaning methods. (a) Abrading sample; (b) pickling sample
Fig. 12. Comparison of surface oxygen mass fraction of samples treated by different methods
Fig. 13. Three-dimensional surface morphologies of samples. (a) S1 sample; (b) S2 sample; (c) abrading sample; (d) pickling sample
Fig. 14. Profile changes of sample intercepted surface after cleaning by different methods
Fig. 15. Hardness distribution cloud diagrams of sample surface after cleaning by different methods. (a) S1 sample; (b) S2 sample (c) abrading sample; (d) pickling sample
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Table 1. Chemical composition of TC4
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Table 2. Laser cleaning parameter combination
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