Chinese Journal of Lasers, Volume. 45, Issue 5, 502003(2018)
Correlation Between X-Ray Diffraction Pattern and Microstructure of Laser Shock Processed 7050-T7451 Aluminum Alloy Surface
Figures & Tables(8)
Fig. 1. XRD patterns of laser shock processed 7050-T7451 aluminum alloys under different laser power densities
Fig. 2. Different parameters versus laser power density. (a) (200) plane, FWMH; (b) (200) plane, grain size; (c) (220) plane, FWMH; (d) (220) plane, grain size
Fig. 4. TEM images of shock processed 7050-T7451 aluminum alloy surface under different laser power densities.(a) 0.81 GW·cm-2; (b) 1.32 GW·cm-2; (c) 1.83 GW·cm-2; (d) 2.34 GW·cm-2
Fig. 5. 57050-T7451 aluminum alloy surface when laser power density is 2.85 GW·cm-2. (a) TEM image; (b) electron diffraction pattern
Fig. 6. Ostwald ripening phenomenon on surface of 7050-T7451 aluminum alloy when laser power density is 2.34 GW·cm-2
Fig. 7. Microstructure response model of laser shock processed 7050-T7451 aluminum alloy surface
Table 1. Chemical compositions of 7050-T7451 aluminum alloys (mass fraction, %)
View tableTable 1. Chemical compositions of 7050-T7451 aluminum alloys (mass fraction, %)
Element Si Fe Cu Mn Mg Zn Value 0.12 0.15 2.0-2.6 0.1 1.9-2.6 5.6-6.7
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Cao Yupeng, Chen Haotian, Feng Aixin, Zhou Rui, Hua Guoran, Jiang Suzhou. Correlation Between X-Ray Diffraction Pattern and Microstructure of Laser Shock Processed 7050-T7451 Aluminum Alloy Surface[J]. Chinese Journal of Lasers, 2018, 45(5): 502003
Paper Information
Category: laser manufacturing
Received: Oct. 23, 2017
Accepted: --
Published Online: May. 2, 2018
The Author Email: Guoran Hua (huagr@ntu.edu.cn)
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