Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Chinese Journal of Lasers, Volume. 52, Issue 20, 2002202(2025)

Effects of Laser Shock Peening on Corrosion Resistance of TA15 Titanium Alloy with Different Microstructures

Qianqian Wang1, Lingfeng Zhang1,2、*, Hua Yu1,3, Tao Jiang1,3, Yi Xiong1,2, Huai Yao1,2, and Jing Zhang1
Author Affiliations
  • 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan , China
  • 2Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology, Luoyang 471023, Henan , China
  • 3National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Luoyang 471003, Henan , China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (19)
    Equations (0)
    References (50)
    Tools
    Paper Information
    Topics
    Figures & Tables(19)
    Microstructures of TA15 titanium alloy. (a) Equiaxed microstructure; (b) basketweave microstructure

    Fig. 1. Microstructures of TA15 titanium alloy. (a) Equiaxed microstructure; (b) basketweave microstructure

    Download full size
    XRD patterns of TA15 titanium alloy surface before and after LSP. (a) Equiaxed microstructure; (b) basketweave microstructure

    Fig. 2. XRD patterns of TA15 titanium alloy surface before and after LSP. (a) Equiaxed microstructure; (b) basketweave microstructure

    Download full size
    Cross-sectional microstructural morphology of TA15 titanium alloy after LSP. (a) Equiaxed microstructure; (b) basketweave microstructure

    Fig. 3. Cross-sectional microstructural morphology of TA15 titanium alloy after LSP. (a) Equiaxed microstructure; (b) basketweave microstructure

    Download full size
    TEM images of TA15 titanium alloy after LSP. (a)(b) Equiaxed microstructures; (c)(d) basketweave microstructures

    Fig. 4. TEM images of TA15 titanium alloy after LSP. (a)(b) Equiaxed microstructures; (c)(d) basketweave microstructures

    Download full size
    TEM images of the surface layer of TA15 titanium alloy after LSP. (a) Brightfield image and SAED pattern of equiaxed microstructure; (b) darkfield image and grain size distribution of equiaxed microstructure; (c) brightfield image and SAED pattern of basketweave microstructure; (d) darkfield image and grain size distribution of basketweave microstructure

    Fig. 5. TEM images of the surface layer of TA15 titanium alloy after LSP. (a) Brightfield image and SAED pattern of equiaxed microstructure; (b) darkfield image and grain size distribution of equiaxed microstructure; (c) brightfield image and SAED pattern of basketweave microstructure; (d) darkfield image and grain size distribution of basketweave microstructure

    Download full size
    Three-dimensional surface morphology of TA15 titanium alloy. (a) Untreated equiaxed microstructure; (b) untreated basketweave microstructure; (c) LSP-treated equiaxed microstructure; (d) LSP-treated basketweave microstructure

    Fig. 6. Three-dimensional surface morphology of TA15 titanium alloy. (a) Untreated equiaxed microstructure; (b) untreated basketweave microstructure; (c) LSP-treated equiaxed microstructure; (d) LSP-treated basketweave microstructure

    Download full size
    Microhardness at different depths of TA15 titanium alloy. (a) Equiaxed microstructure; (b) basketweave microstructure

    Fig. 7. Microhardness at different depths of TA15 titanium alloy. (a) Equiaxed microstructure; (b) basketweave microstructure

    Download full size
    Residual stress at different depths of TA15 titanium alloy after LSP

    Fig. 8. Residual stress at different depths of TA15 titanium alloy after LSP

    Download full size
    Potentiodynamic polarization (PDP) curves of TA15 titanium alloy

    Fig. 9. Potentiodynamic polarization (PDP) curves of TA15 titanium alloy

    Download full size
    EIS of TA15 titanium alloy. (a) Nyquist plot; (b) Bode plot

    Fig. 10. EIS of TA15 titanium alloy. (a) Nyquist plot; (b) Bode plot

    Download full size
    Equivalent circuit used for EIS fitting

    Fig. 11. Equivalent circuit used for EIS fitting

    Download full size
    Weight loss of TA15 titanium alloy

    Fig. 12. Weight loss of TA15 titanium alloy

    Download full size
    Corrosion rate of TA15 titanium alloy

    Fig. 13. Corrosion rate of TA15 titanium alloy

    Download full size
    SEM images and EDS spectra of TA15 titanium alloy after immersion in 5 mol/L HCl solution for 10 days. (a) Untreated equiaxed microstructure; (b) LSP-treated equiaxed microstructure; (c) untreated basketweave microstructure; (d) LSP-treated basketweave microstructure

    Fig. 14. SEM images and EDS spectra of TA15 titanium alloy after immersion in 5 mol/L HCl solution for 10 days. (a) Untreated equiaxed microstructure; (b) LSP-treated equiaxed microstructure; (c) untreated basketweave microstructure; (d) LSP-treated basketweave microstructure

    Download full size
    SEM images of TA15 titanium alloy after being immersed in 5 mol/L HCl solution for 10 days and removing corrosion products. (a) Untreated equiaxed microstructure; (b) LSP-treated equiaxed microstructure; (c) untreated basketweave microstructure; (d) LSP-treated basketweave microstructure

    Fig. 15. SEM images of TA15 titanium alloy after being immersed in 5 mol/L HCl solution for 10 days and removing corrosion products. (a) Untreated equiaxed microstructure; (b) LSP-treated equiaxed microstructure; (c) untreated basketweave microstructure; (d) LSP-treated basketweave microstructure

    Download full size

    • Table 1. Chemical composition of TA15 titanium alloy

      View table

      Table 1. Chemical composition of TA15 titanium alloy

      ElementMass fraction /%
      Al6.6
      Zr2.2
      Mo1.7
      V2.2
      TiBal.

    • Table 2. LSP processing parameter

      View table

      Table 2. LSP processing parameter

      Parameter of LSPValue
      Laser wavelength /nm1064
      Pulse width /ns20
      Pulse energy /J6
      Spot diameter /mm3
      Overlapping rate /%50
      Power density /（GW/cm2）4.25

    • Table 3. PDP curve parameters of TA15 titanium alloy in different states

      View table

      Table 3. PDP curve parameters of TA15 titanium alloy in different states

      MicrostructureSpecimenCorrosion potential /mV

      Corrosion current

      density /（nA/cm2）

      Passivation current

      density /（μA/cm2）

      EquiaxedUntreated-403.9929.052.28
      LSP-393.2710.641.29
      BasketweaveUntreated-398.7399.589.87
      LSP-331.0213.531.53

    • Table 4. Equivalent circuit parameters

      View table

      Table 4. Equivalent circuit parameters

      MicrostructureSpecimenRs /（Ω·cm2）CPEf /（10-6 S·cm-2·s-n）n1Rf /（kΩ·cm2）
      EquiaxedUntreated27.519.230.887922.06
      LSP13.736.6790.900135.43
      BasketweaveUntreated12.0534.180.852917.92
      LSP23.249.6080.926215.99
      MicrostructureSpecimenCPEdl /（10-6 S·cm-2·s-n）n2Rct /（MΩ·cm2）χ2 /10-4
      EquiaxedUntreated4.1440.91035.6135.241
      LSP2.4230.881677.463.718
      BasketweaveUntreated3.8130.98830.63679.923
      LSP3.0180.86519.9112.945
    Tools

    Get Citation

    Copy Citation Text

    Qianqian Wang, Lingfeng Zhang, Hua Yu, Tao Jiang, Yi Xiong, Huai Yao, Jing Zhang. Effects of Laser Shock Peening on Corrosion Resistance of TA15 Titanium Alloy with Different Microstructures[J]. Chinese Journal of Lasers, 2025, 52(20): 2002202

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Laser Surface Machining

    Received: Feb. 25, 2025

    Accepted: Apr. 10, 2025

    Published Online: Jun. 16, 2025

    The Author Email: Lingfeng Zhang (zh_lingfeng@163.com)

    DOI:10.3788/CJL250557

    CSTR:32183.14.CJL250557

    Topics

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