Laser & Optoelectronics Progress, Volume. 59, Issue 19, 1916003(2022)

Microstructure and Properties of 35.8%Fe-20%Ti-20%Al-24%Cr- 0.2%Y2O3 Coatings Prepared by Laser Cladding

Hongyi Jiang, Xinyi Zhao*, Tianqing Li, Qiang Zhu, Dan Wang, and Yucheng Lei**
Author Affiliations
  • School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
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    Figures & Tables(16)
    Laser cladding experiment. (a) Laser cladding with preplaced powder; (b) 6 kW laser processing system; (c) macro-morphology of coating
    Diagram of wear test equipment
    XRD pattern of alloy coating
    Metallographic images. (a) Transition area; (b) coating
    EBSD results of coating structure. (a) EBSD morphology of coating cross section; (b) coating grain size distribution
    Distributions of EDS element in coating cross section
    Element distributions in coating and transition zone. (a) Element distribution curves of coating and transition zone; (b) elemental composition of transition zone
    Hardness analysis of coating-substrate. (a) Section hardness change of coating-substrate; (b) EBSD morphology of transition cross section; (c) phase distribution of transition cross section
    Wearing surface morphologies changes of the pins before and after wear test. (a) 304 stainless steel pin surface before wear; (b) 304 stainless steel pin surface after wear; (c) coating pin surface before wear; (d) coating pin surface after wear
    Morphologies and EDS element analysis of stainless steel pin wearing disk. (a) Oxidative wear area; (b) adhesive wear area
    Morphologies and EDS element analysis of alloy coating wearing disk
    Comparison of average friction coefficients between coating and 304 stainless steel
    • Table 1. Chemical composition of 304 stainless steel

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      Table 1. Chemical composition of 304 stainless steel

      ElementCMnPSSiCrNiFe
      Mass fraction /%≤0.080≤2.000≤0.045≤0.030≤1.00018.000-20.0008.000-11.000Bal.
    • Table 2. Chemical composition of Fe-Ti-Al-Cr-Y2O3 mixed powder

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      Table 2. Chemical composition of Fe-Ti-Al-Cr-Y2O3 mixed powder

      ElementFeCrAlTiY2O3
      Mass fraction /%35.824.020.020.00.2
    • Table 3. Parameters in laser cladding process

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      Table 3. Parameters in laser cladding process

      Laser power /WScanning velocity /(mm·s-1Thickness of preplaced powder /mmOverlapping rate /%
      220050.550
    • Table 4. Volume and mass loss of pins

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      Table 4. Volume and mass loss of pins

      SampleVolume loss /mm3Mass loss /g
      SS-14.84290.0324
      SS-24.58120.0401
      SS-34.63480.0339
      COAT-10.82980.0015
      COAT-20.62370.0008
      COAT-30.64230.0016
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    Hongyi Jiang, Xinyi Zhao, Tianqing Li, Qiang Zhu, Dan Wang, Yucheng Lei. Microstructure and Properties of 35.8%Fe-20%Ti-20%Al-24%Cr- 0.2%Y2O3 Coatings Prepared by Laser Cladding[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1916003

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    Paper Information

    Category: Materials

    Received: Aug. 24, 2021

    Accepted: Sep. 29, 2021

    Published Online: Oct. 12, 2022

    The Author Email: Zhao Xinyi (zhaoxinyi21@126.com), Lei Yucheng (yclei@ujs.edu.cn)

    DOI:10.3788/LOP202259.1916003

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