Yun Gao, Zenan Yang, Chengwei Song, Yuanhang Zhang, Jian Zhang, Qinghua Zhang, Mincai Liu, Yaguo Li. Multi-pulses ablation threshold of Ni-based superalloy irradiated by ultrafast laser with different pulse duration[J]. High Power Laser and Particle Beams, 2022, 34(4): 041005
- High Power Laser and Particle Beams
- Vol. 34, Issue 4, 041005 (2022)
Fig. 1. Surface roughness test results of superalloy samples
Fig. 2. Schematic diagram of ultrashort pulse laser processing system
Fig. 3. Morphologies of ablation holes irradiated by 100 laser pulses with a pulse width 290 fs at different pulse energy
Fig. 4. Curves of ablation hole diameter vs laser energy for the superalloy surface after the irradiation of ultrafast laser with different pulse duration
Fig. 5. Curves of square of ablation hole diameter vs laser energy for the superalloy surface irradiated by ultrafast laser with different pulse duration
Fig. 6. Curves of the ablation threshold vs number of pulses
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Table 1. Elemental composition of Ni-based superalloy sample
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Table 2. Multi-pulse ablation thresholds of Ni-based superalloy irradiated by ultrafast lasers with different pulse durations
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Table 3. Incubation coefficient values corresponding to different pulse durations
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