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SONG Chuan-wang, LI Ming-xi. Effect of nano-CeO2 on the microstructure and properties of laser clad nickel-based alloy coating[J]. LASER TECHNOLOGY, 2006, 30(3): 228-231.
Citation: SONG Chuan-wang, LI Ming-xi. Effect of nano-CeO2 on the microstructure and properties of laser clad nickel-based alloy coating[J]. LASER TECHNOLOGY, 2006, 30(3): 228-231.

Effect of nano-CeO2 on the microstructure and properties of laser clad nickel-based alloy coating

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  • Received Date: July 07, 2005
  • Revised Date: August 15, 2005
  • Published Date: May 24, 2006
  • The microstructure and properties of laser clad coating are introduced after adding nano particles.Nickel-based alloy powder with different addition of nano-CeO2 is laser cladded onto Q235 steel substrate.The coating is examined to reveal the microstructure,phase composition,microhardness and wear resistance using optical microscope(OP),X-ray diffractometer(XRD),microhardness tester,block-on-ring wear tester and scanning electron microscope(SEM) respectively.The results show that fine dendrite and equiaxed dendrite are observed by adding nano-CeO2.Equiaxed dendrite across the section is obtained when the additive reaches to 1.5%(mass fraction).A new phase(Ce2Ni21B6) is found.The microhardness and wear resistance of the coating are much higher than those of the substrate,and further improved by adding nano-CeO2.But the hardness decreased when the additive amount is much high.The mechanism of these effects is also discussed.
  • [1]
    GLEITER H.Nanostructured materials:basic concepts and microstructure[J].Acta Materialia,2002,48(1):1~29.
    [1]
    CHEN H,PAN Ch X,PAN L et al.Development of wear-resistant laser cladding[J].Heat Treatment of Metals,2002,27(9):5~10(in Chinese).
    [2]
    HE Y,HUANG Z,QI H et al.Oxidation behavior of microcrystalline Ni-20Cr-Y2O3 ODS alloy coatings[J].Materials Letters,2000,45(2):79~85.
    [3]
    SURYANARAYANA C.Mechanical alloying and milling[J].Progress in Materials Science,2001(46):1~184.
    [4]
    HU M L,XIE Ch Sh,ZHU B L et al.Fractogragy study on cracking behavior of laser-clad multitrack coatings[J].Transactions of Materials and Heat Treatment,2001,22(2):23~26(in Chinese).
    [5]
    SHEN Y F,CHEN J Zh,FENG Zh Ch et al.Distribution and behavior of rear earth in laser coating[J].Journal of the Rear Earth Society,1997,15(4):344~349(in Chinese).
    [6]
    XU Y,JI H,CHEN X et al.Effect of laser surface melting treatment on the structure and corrosion resistance of rare earth permeating layer of pure iron[J].Journal of the Rear Earth Society,2001,19(4):346~349(in Chinese).
    [7]
    LI M X,HE Y Zh,SUN G X.Al2O3 nanocrystalline/Ni based alloy composite coatings produced by laser cladding[J].Chinese Journal of Lasers,2004,31(9):1149~1152(in Chinese).
    [8]
    YU Z S,ZHU Y Y.The rare earth in iron[M].Beijing:Metallurgical Industry Press,1982.38~297(in Chinese).
    [9]
    LI A M,XU B F,PAN Y J.Effect of La2O3 microstructure and property of TiC/Ni-based composite coating[J].Journal of Iron and Steel Reseach,2003,15(1):57~61(in Chinese).
    [10]
    LI H D,XIAO J M.Material surface and interface[M].Beijing:Tsinghua University Press,1990.1~198(in Chinese).

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