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SHEN Yanjin, LI Xuefeng, CHEN Xueyong. Effect of ultrasonic power on microstructure and properties of Fe-Cr-V-C coating by laser cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 74-78. DOI: 10.12073/j.hjxb.20170516
Citation: SHEN Yanjin, LI Xuefeng, CHEN Xueyong. Effect of ultrasonic power on microstructure and properties of Fe-Cr-V-C coating by laser cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 74-78. DOI: 10.12073/j.hjxb.20170516
shu

Effect of ultrasonic power on microstructure and properties of Fe-Cr-V-C coating by laser cladding

  • 1.

    College of Materials Science and Engineering, Hunan University, Changsha 410000, China

  • 2.

    Jiangxi Changhe Suzuki Automobile Co. Ltd, Jiujiang 332005, China

  • 3.

    Third Engineering Company, China Construction Fifth Engineering Bureau, Changsha 410004, China

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  • Received Date: May 14, 2015
    Graphical Abstract
    • Abstract
  • The coating with high strength, high hardness and high wear resistance were prepared by laser cladding. The effect of ultrasonic power on the microstructure and properties was investigated through optical microscopy, SEM, XRD and MLS-23 wet sand rubber wheel tester. Meanwhile, the grain size was calculated by the Image-Pro Plus software. The results show the effect of ultrasonic power on microstructure and properties of the coating is very obvious. With the increasing of ultrasonic power, the grain size reduces from 87μm to 6μm, which has a strong correlation with obvious cavitation effect and acoustic stream. The hardness and relative wear resistance increase at first, then decrease. When the ultrasonic power is 1 000 W, the grain size is 6 μm. The hardness is very high, the value is 62 HRC. The relative wear resistance is very high, which is about 50 times than that of substrate.
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