Acta Optica Sinica, Volume. 41, Issue 14, 1414002(2021)

Influence of Laser Irradiation on Compactness and Wear Resistance of Ti6Al4V Coating Prepared by Supersonic Laser Deposition

Gang Zhang1,2, Jie Zhang1,2, Bo Li1,2,3、*, Wenxiang Jiang3, Weilin Wang1,2, Qunli Zhang1,2, and Jianhua Yao1,2
Author Affiliations
  • 1Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, Zhejiang 310023, China
  • 2College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310023, China
  • 3Jiangsu Yawei Machine Tool Co., Ltd., Yangzhou, Jiangsu 225200, China
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    Figures & Tables(14)
    Morphological diagrams of Ti6Al4V powder. (a) Micro-morphology; (b) particle size distribution
    Schematic of SLD system
    Cross-sectional micro-morphologies of SLD-Ti6Al4V coatings. (a)(b) B1; (c)(d) B2; (e)(f) B3; (g)(h) B4; (i)(j) B5
    Area fraction of interfacial reaction layer in SLD-Ti6Al4V coatings
    EDS mapping results at particle interface of SLD-Ti6Al4V coating (sample B3). (a) Original SEM image; (b) Ti element; (c) Al element; (d) V element; (e) N element
    EDS analysis result of Ti6Al4V powder
    XRD patterns of Ti6Al4V coatings and Ti6Al4V powder
    Compactness comparison of coatings. (a)(c) CS-Ti6Al4V; (b)(d) SLD-Ti6Al4V
    Porosity comparison of SLD-Ti6Al4V coatings
    Schematic of particle interfacial in-situ reaction in SLD-Ti6Al4V coatings
    Micro-hardness of SLD-Ti6Al4V coatings. (a) B1; (b) B2; (c) B3; (d) B4; (e) B5; (f) average value of micro-hardness
    Micro-morphologies of worn surfaces of Ti6Al4V substrate and coatings. (a)(b) Ti6Al4V substrate; (c)(d) CS-Ti6Al4V coating; (e)(f) SLD-Ti6Al4V coating
    • Table 1. Process parameters for preparing SLD-Ti6Al4V coatings

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      Table 1. Process parameters for preparing SLD-Ti6Al4V coatings

      SampleNo.N2pressure /MPaN2temperature /Standoffdistance /mmPowderfeeding rate /(r·min-1)Traversespeed /(mm·s-1)Laserpower /WLaser spotdiameter /mmOverlappingrate /%
      B151000301.5150450
      B251000301.515500450
      B351000301.515600450
      B451000301.515700450
      B551000301.515800450
    • Table 2. EDS analysis results of particle interfacial reaction layer in SLD-Ti6Al4V coatings

      View table

      Table 2. EDS analysis results of particle interfacial reaction layer in SLD-Ti6Al4V coatings

      Sample No.ContentTiNAlV
      B1Mass fraction /%85.28.924.771.12
      Atomic fraction /%68.0624.346.760.84
      B2Mass fraction /%81.1612.674.761.17
      Atomic fraction /%60.4732.276.290.82
      B3Mass fraction /%83.0311.923.870.86
      Atomic fraction /%63.0230.945.220.61
      B4Mass fraction /%81.2013.354.440.88
      Atomic fraction /%59.8533.655.810.61
      B5Mass fraction /%73.5322.732.790.57
      Atomic fraction /%46.8249.473.150.34
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    Gang Zhang, Jie Zhang, Bo Li, Wenxiang Jiang, Weilin Wang, Qunli Zhang, Jianhua Yao. Influence of Laser Irradiation on Compactness and Wear Resistance of Ti6Al4V Coating Prepared by Supersonic Laser Deposition[J]. Acta Optica Sinica, 2021, 41(14): 1414002

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 5, 2021

    Accepted: Feb. 15, 2021

    Published Online: Jul. 11, 2021

    The Author Email: Li Bo (libo1011@zjut.edu.cn)

    DOI:10.3788/AOS202141.1414002

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