Advanced Search
YUAN Qing-long, FENG Xu-dong, CAO Jing-jing, SU Zhi-jun. Effect of laser scanning speeds on the microstructure and corrosion resistance of laser cladding layers[J]. LASER TECHNOLOGY, 2011, 35(2): 163-166. DOI: 10.3969/j.issn.1001-3806.2011.02.006
Citation: YUAN Qing-long, FENG Xu-dong, CAO Jing-jing, SU Zhi-jun. Effect of laser scanning speeds on the microstructure and corrosion resistance of laser cladding layers[J]. LASER TECHNOLOGY, 2011, 35(2): 163-166. DOI: 10.3969/j.issn.1001-3806.2011.02.006
shu

Effect of laser scanning speeds on the microstructure and corrosion resistance of laser cladding layers

  • College of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China

More Information
  • Received Date: April 14, 2010
  • Revised Date: May 04, 2010
  • Published Date: March 24, 2011
    Graphical Abstract
    • Abstract
  • Ni-based alloy coating was prepared on the Q235 steel by thermal spraying and laser remelting process at different scanning speeds,in order to study the effect of laser scanning speeds on the microstructure and corrosion resistance of laser cladding layers.The surface macro-morphology and microstructure were observed with an optical microscope(OM)and a scanning electronic microscope(SEM),and the micro-hardness and corrosion resistance were measured and analyzed with the hardness tester and electrochemical corrosion method.The results show that the microstructure becomes dense and even and the grains become tiny,while the amount of the white-bright dendrites increase and the eutectic compounds between the dendrites reduce with laser scanning speeds increasing.In addition,the micro-hardness and corrosion resistance greatly increase due to grain refinement and so on.As a result,the optimum technological parameters are 3kW in laser power,6mm/s in laser scanning speed and 3mm in beam diameter for the Ni-based alloy cladding layer preparation.The result is expected to provide practical value for selecting reasonable laser cladding technological parameters to achieve optimal performance of the cladding layer.
    • FullText(HTML)
    • References (14)
  • [1]
    QIAN M G.The manual of surface technology and applications[M].Beijing:Machinery Industry Press,1998:656-682(in Chinese).
    [2]
    YUAN Q L,FENG X D,CAO J J,et al.Research progress on laser cladding technique[J].Materials Review,2010,24(2):112-116(in Chinese).
    [3]
    AMITESH K,SUBHRANSU R.Effect of three-dimensional melt pool convection on process characteristics during laser cladding[J].Computational Materials Science,2009,46 (2):495-506.
    [4]
    GAO L L,BIAN X F,TIAN Y Sh,et al.Effect of Co on micrestructure and intedacial properties of Fe-based laser cladding[J].Journal of Iron and Steel Research,2009,16(4):84-88.
    [5]
    CHEN H H,XU C Y,CHEN J,et al.Microstructure and phase transformation of WC/Ni60B laser cladding coatings during dry sliding wear[J].Wear,2008,264(7/8):487-493.
    [6]
    KNUT P.Analytical model of the catchment efficiency in high speed laser cladding[J].Sudane and Coatings Technology,2009,204 (3):366-371.
    [7]
    YANG X Y,PENG X,CHEN J,et al.Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy[J].Applied Surface Science,2007,253 (9):4420-4426.
    [8]
    FENG X D.Microstructure and properties of Ni-based alloy by laser cladding and thermal spraying[J].Heat Treatment Technology and Equipment,2010,31 (1):28-31 (in Chinese).
    [9]
    QIU X W,LI G,REN X,et al.Influence of scanning speed on microstructure and properties of Ni based laser cladding coating[J].Rare Metal Materials and Engineering,2009,38 (s1):325-327 (in Chinese).
    [10]
    XIONG Zh,CHEN G X,ZENG X Y.Effects of process variables on interfacial quality of laser cladding on aeroengine blade material GH4133[J].Journal of Materials Processing Technology,2009,209(2):930-936.
    [11]
    SONG Ch W,LI M X.Effect of nano-CeO2 on the microstructure and properties of laser clad nickel-based alloy coating[J].Laser Technology,2006,30(3):228-231 (in Chinese).
    [12]
    MIAO K Z,LOU B Y.Corrosion resistance of magnesium alloy and epoxy polyurethane coating system[J].Journal of Materials Protection,2009,42(4):1-4(in Chinese).
    [13]
    TIAN F J,LIU W J,SHANG X F.Study on Ni60A ceating an copper by laser cladding[J].Heat Treatment of Metals,2008,33(12):35-37 (in Chinese).
    [14]
    XUE Zh F,YE H,WANG B,et al.Effect of scanning speed on structure and properties of laser cladding of 45 steel[J].Journal of Chongqing Institute of Technology(Natural Science Edition),2009,23 (3):48-51 (in Chinese).
    • Related Articles

Catalog

    Get Citation
    PDF
    XML
    Article views (5) PDF downloads (0) Cited by()
    Turn off MathJax
    Article Contents
    Abstract
    References

    Links：

    more+

    Website Copyright © Editorial Department of LASER TECHNOLOGY 蜀ICP备10038222号-1

    Address：No. 7, Section 4, Renmin South Road, Chengdu, Sichuan Province, China Post Code：610041

    Tel：028-68011091/68011046 Email: jgjs@vip.163.com

    Supported by: Beijing Renhe Information Technology Co., Ltd. 

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return