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Microstructure and tribological properties of laser clad Ni-Ag/Tic composite coating

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Abstract

Ni-Ag/TiC composite coating was prepared on the 45 steel substrates by means of laser cladding. Microstructure and wear properties of composite coatings were analyzed using optical microscopy, field emission scanning electron microscopy and wear machine. The experimental results show that defects, such as cracks and pores, do not occur in the laser-cladded Ni-Ag/TiC composite coating and 45 steel substrate, and they present good metallurgical bonding between them. Compared with Ni/TiC composite coating, microhardness values of the two coatings do not present evident differences. The wear experiment result shows that Ni-Ag/TiC composite coated with Ag possesses low friction coefficient and good wear resistance compared with Ni/TiC composite coating.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Taizhou University, Taizhou, 318000, China

    Liu Zhu  (朱流)

  2. College of Material Science and Engineering, Hefei University of Technology, Hefei, 230009, China

    Laima Luo  (罗来马), Yucheng Wu & Jigui Cheng

Authors
  1. Liu Zhu  (朱流)
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  2. Laima Luo  (罗来马)
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  3. Yucheng Wu
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  4. Jigui Cheng
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Corresponding author

Correspondence to Laima Luo  (罗来马).

Additional information

Funded by the Natural Science Foundation of Zhejiang Province (LY12E02003), the National Natural Science Foundation of China (No.51204064) and the Training Program of the Major Research Plan of the National Natural Science Foundation of China (No.91023030)

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Zhu, L., Luo, L., Wu, Y. et al. Microstructure and tribological properties of laser clad Ni-Ag/Tic composite coating. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 29, 242–245 (2014). https://doi.org/10.1007/s11595-014-0901-z

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  • DOI: https://doi.org/10.1007/s11595-014-0901-z

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