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LI Gang, LIU Li, HOU Jun-ying, SHUI Dong-li, CHEN Yong-jun, TANG Hai-peng. Study on microstructure and performance of laser cladding Ni-Zr-Nb-Al amorphous composite coating[J]. LASER TECHNOLOGY, 2011, 35(2): 185-188. DOI: 10.3969/j.issn.1001-3806.2011.02.012
Citation: LI Gang, LIU Li, HOU Jun-ying, SHUI Dong-li, CHEN Yong-jun, TANG Hai-peng. Study on microstructure and performance of laser cladding Ni-Zr-Nb-Al amorphous composite coating[J]. LASER TECHNOLOGY, 2011, 35(2): 185-188. DOI: 10.3969/j.issn.1001-3806.2011.02.012
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Study on microstructure and performance of laser cladding Ni-Zr-Nb-Al amorphous composite coating

  • Department of Materials Science and Engineering, Liaoning Technical University, Fuxin 123000, China

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  • Received Date: May 30, 2010
  • Revised Date: June 06, 2010
  • Published Date: March 24, 2011
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    • Abstract
  • In order to prepare Ni-based amorphous coatings,Ni60.5Zr19.63Nb18.07Al1.8 amorphous composite coating was prepared on 45 steel substrate by means of laser cladding.Then the microstructure and phase of the coating were analyzed and the parameters characterizing the mechanical and corrosion resistance were measured.The results show that a great deal of dendritic and cystiform crystal phases exist in the coating.X-ray diffraction analysis reveals that amorphous,intermetallic compound such as NiZr2,Ni8 Nb,Al2O3 and Fe-Ni,and some other phases present in the coating.Content of white amorphous phase is up to maximum at the power of 3600W,and microstructure is most fine;hardness reaches maximum at the power of 3000W and can be up to 2399.9HK at topmost surface,while surface wear weight loss is 0.5921 mg·mm-2;coating corrosion resistance is the best at the power of 3600W.The minimum obtuse current density is 3.05mA/m2,and passive potential widest range is 1170mV;Ni60.5Zr19.63Nb18.07Al1.8 designed according to the new criterion has strong glass forming ability.
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    • References (9)
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