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Chinese Journal of Lasers, Volume. 50, Issue 16, 1602208(2023)

Morphology and Wettability of Titanium Alloy Surface Textured by Femtosecond Laser

Pulu Xiao1,2, Guanhua Chen1,2, Yu Chen5, Xiang Zhang1,2,3,4, and Xiao Yuan1,2,3,4、*
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, Jiangsu, China
  • 2Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, Jiangsu, China
  • 3Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province, Suzhou 215006, Jiangsu, China
  • 4Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, Jiangsu, China
  • 5Amplitude Shanghai Laser Technology Co., Ltd., Suzhou 215123, Jiangsu, China
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    References (34)
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    Figures & Tables(11)
    Schematic of femtosecond laser texturing system

    Fig. 1. Schematic of femtosecond laser texturing system

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    Schematics of laser cross-line scanning path strategy. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

    Fig. 2. Schematics of laser cross-line scanning path strategy. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

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    SEM images of Ti6Al4V surfaces obtained by 90° and 60° cross-line scanning under different F and N. (a1)(b1) F=0.20 J/cm², N=10; (a2)(b2) F=0.90 J/cm², N=10; (a3)(b3) F=2.31 J/cm², N=10; (a4)(b4) F=5.51 J/cm², N=10; (a5)(b5) F=0.20 J/cm², N=5; (a6)(b6) F=0.20 J/cm², N=25; (a7)(b7) F=0.20 J/cm², N=50; (a8)(b8) F=2.31 J/cm², N=50

    Fig. 3. SEM images of Ti6Al4V surfaces obtained by 90° and 60° cross-line scanning under different F and N. (a1)(b1) F=0.20 J/cm², N=10; (a2)(b2) F=0.90 J/cm², N=10; (a3)(b3) F=2.31 J/cm², N=10; (a4)(b4) F=5.51 J/cm², N=10; (a5)(b5) F=0.20 J/cm², N=5; (a6)(b6) F=0.20 J/cm², N=25; (a7)(b7) F=0.20 J/cm², N=50; (a8)(b8) F=2.31 J/cm², N=50

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    Cross-sectional profiles of microstructures parallel to scan path direction under different F when N=10. (a1)(b1) F=0.20 J/cm²; (a2)(b2) F=0.90 J/cm²; (a3)(b3) F=2.31 J/cm²; (a4)(b4) F=5.51 J/cm²

    Fig. 4. Cross-sectional profiles of microstructures parallel to scan path direction under different F when N=10. (a1)(b1) F=0.20 J/cm²; (a2)(b2) F=0.90 J/cm²; (a3)(b3) F=2.31 J/cm²; (a4)(b4) F=5.51 J/cm²

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    Saand microstructure heights of samples obtained by two laser scanning methods under different F when N=10. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

    Fig. 5. Saand microstructure heights of samples obtained by two laser scanning methods under different F when N=10. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

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    Cross-sectional profiles of microstructures parallel to scan path direction under different N when F=0.20 J/cm². (a1)(b1) N=5;(a2)(b2) N=10; (a3)(b3) N=25; (a4)(b4) N=50

    Fig. 6. Cross-sectional profiles of microstructures parallel to scan path direction under different N when F=0.20 J/cm². (a1)(b1) N=5;(a2)(b2) N=10; (a3)(b3) N=25; (a4)(b4) N=50

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    Saand microstructure heights of samples obtained by two laser scanning methods under different N when F= 0.20 J/cm². (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

    Fig. 7. Saand microstructure heights of samples obtained by two laser scanning methods under different N when F= 0.20 J/cm². (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning

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    Contact angles of sample surfaces obtained by two laser scanning methods under different N and F. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning; (c) contact angle of surface versus time under 90° laser cross-line scanning when F=2.31 J/cm² and N=50

    Fig. 8. Contact angles of sample surfaces obtained by two laser scanning methods under different N and F. (a) 90° laser cross-line scanning; (b) 60° laser cross-line scanning; (c) contact angle of surface versus time under 90° laser cross-line scanning when F=2.31 J/cm² and N=50

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    XPS diagram of surfaces obtained without laser texture and with 90° laser cross-line scanning under different F and N

    Fig. 9. XPS diagram of surfaces obtained without laser texture and with 90° laser cross-line scanning under different F and N

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    Ti2p fine spectra of surfaces obtained without laser texture and with 90° laser cross-line scanning under different F and N

    Fig. 10. Ti2p fine spectra of surfaces obtained without laser texture and with 90° laser cross-line scanning under different F and N

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    • Table 1. Femtosecond laser processing parameters

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      Table 1. Femtosecond laser processing parameters

      Sample No.F/（J/cm²）N
      10.2010
      20.9010
      32.3110
      45.5110
      50.205
      60.2025
      70.2050
      82.3150
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    Pulu Xiao, Guanhua Chen, Yu Chen, Xiang Zhang, Xiao Yuan. Morphology and Wettability of Titanium Alloy Surface Textured by Femtosecond Laser[J]. Chinese Journal of Lasers, 2023, 50(16): 1602208

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    Paper Information

    Category: Laser Surface Machining

    Received: Jan. 3, 2023

    Accepted: Mar. 7, 2023

    Published Online: Jul. 18, 2023

    The Author Email: Yuan Xiao (xyuan@suda.edu.cn)

    DOI:10.3788/CJL230431

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology