Huang Yu, Zhou Jianzhong, Li Jing, Tian Xuliang, Meng Xiankai, Huang Shu. Effects of Cryogenic Laser Peening on Damping Characteristics and Vibration Fatigue Life of TC6 Titanium Alloy[J]. Chinese Journal of Lasers, 2020, 47(4): 402011
- Chinese Journal of Lasers
- Vol. 47, Issue 4, 402011 (2020)
Fig. 1. Vibration sample size and laser peening area
Fig. 2. CLP test system. (a) Schematic; (b) experimental device
Fig. 3. Microstructures of specimen at different treatment methods. (a)(b) RT-LP; (c)(d) CLP
Fig. 4. TEM photos of specimen surface treated by CLP
Fig. 5. First-order damping ratio of specimens treated by different modes
Fig. 6. Fatigue life of vibration specimens treated by different modes
Fig. 7. Fracture morphology of vibration fatigue crack propagation zone. (a) Untreated specimen; (b) RT-LP specimen; (c) CLP specimen
Fig. 8. Instantaneous zone morphology of different specimens. (a) Untreated sample; (b) RT-LP specimen; (c) CLP specimen
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Table 1. Chemical composition of TC6 titanium alloy
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Table 2. Mechanical properties of TC6 titanium alloy
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