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Volume 26 Issue 5
Sep.  2013
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Citation:
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Microstructure performance of laser clad Ni-based alloy coating with SiC ceramics particles

  • 1.

    Research Center for Laser Processing, Anhui University of Technology, Maanshan, 243002

  • Received Date: 2001-12-31
    Accepted Date: 2002-04-25
  • Laser clad Ni based alloy coating with 20%(vol%)SiC(NiSiC) on 16Mn steel substrate has been obtained by 5kW CO2 continuous wave laser implement. Microstructure morphology and phase structure of the laser clad alloy coating have been studied,and microhardness and the performance of sliding wear test of the coating have been discussed in contrast to laser clad Ni-based alloy coating(Ni60). The result shows that the microstructure of laser clad alloy coating is consisted of γ dendrite solid solution and the eutectic structure between the dendrites. Constituent phases of the coating mainly have γ-Ni,γ-(Fe,Ni),(Cr,Fe)7C33,Cr23C6 and (Cr,Si)3Ni3Si. Microhardness and sliding wear resistance of the NiSiC coating are higher than that of the Ni60 coating.
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  • [1] 李国华,丁钢.金属热处理,1999(9):14～17.
    [2]

    Yang Y Q. Applied Surface Science,1999,140:19～23.
    [3] 李玉红,张思玉,郑克全.激光技术,1999,23(2):126～128.
    [4]

    Riabkina-Fishman M,Rabkin E,Levin P et al.Materials Science and Engneering,2001,A302:106～114.
    [5] 顾洪武.激光技术,1993,17(4):220～223.
    [6]

    Yue T M,Hu Q W,Mei Z et al.Materials Letters,2001,47:165～170.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Microstructure performance of laser clad Ni-based alloy coating with SiC ceramics particles

  • 1. Research Center for Laser Processing, Anhui University of Technology, Maanshan, 243002
  • Received Date: 2001-12-31
  • Accepted Date: 2002-04-25
  • Available Online: 2002-09-25

Abstract: Laser clad Ni based alloy coating with 20%(vol%)SiC(NiSiC) on 16Mn steel substrate has been obtained by 5kW CO2 continuous wave laser implement. Microstructure morphology and phase structure of the laser clad alloy coating have been studied,and microhardness and the performance of sliding wear test of the coating have been discussed in contrast to laser clad Ni-based alloy coating(Ni60). The result shows that the microstructure of laser clad alloy coating is consisted of γ dendrite solid solution and the eutectic structure between the dendrites. Constituent phases of the coating mainly have γ-Ni,γ-(Fe,Ni),(Cr,Fe)7C33,Cr23C6 and (Cr,Si)3Ni3Si. Microhardness and sliding wear resistance of the NiSiC coating are higher than that of the Ni60 coating.

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