Surface & Coatings Technology2022，Vol.43113.DOI:10.1016/j.surfcoat.2021.128030

Electrodeposition and wear behavior of NiCoW ternary alloy coatings reinforced by Al2O3 nanoparticles: Influence of current density and electrolyte composition

Yin, Yibiao Xu, Zhao Lv, Yin Liao, Zhiqun Wei, Guoying Zhong, Fengping Yuan, Meng Zhang, Zhongquan Dai, Leyu
Surface & Coatings Technology2022，Vol.43113.DOI:10.1016/j.surfcoat.2021.128030
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  • NSTL
  • Elsevier

Electrodeposition and wear behavior of NiCoW ternary alloy coatings reinforced by Al2O3 nanoparticles: Influence of current density and electrolyte composition

Yin, Yibiao 1Xu, Zhao 1Lv, Yin 1Liao, Zhiqun 1Wei, Guoying 1Zhong, Fengping 2Yuan, Meng 2Zhang, Zhongquan 1Dai, Leyu1
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作者信息

  • 1. China Jiliang Univ
  • 2. Zhejiang Acad Special Equipment Sci
  • 折叠

Abstract

Al2O3 nanoparticles incorporated NiCoW ternary alloy coatings were synthesized by direct current electrode-position from sulphate-citrate electrolyte. The influence of applied current density and electrolyte composition on the evolution of surface morphology, element composition, microstructure, microhardness and sliding wear behavior of the as-deposited coatings was investigated. The as-deposited coatings exhibit colony surface morphology and the inter-colony boundaries lead a leaf vein-like cross-sectional structure. The composition of the as-deposited coatings is controlled by the induced co-deposition mechanism and the competition among the reductions of Ni, Co, Ni-W and Co-W. The as-deposited coatings change from crystalline to amorphous structure with the decrease of Ni content in coatings and the critical Ni content for the transformation is about 40 at.%. The incorporation of Al2O3 nanoparticles leads to a little increase of microhardness, degrades adhesive wear and oxidation wear, then significantly improve wear resistance. Variations in electrodeposition conditions lead the as-deposited coatings with different wear behavior, including abrasive wear, adhesive wear and oxidation wear, accompanying with plastic deformation. An attempt is made to establish the relationship between the electro-deposition conditions and wear behavior.

Key words

Electrodeposition/NiCoW/Al2O3 composite coating/Surface structure/Wear resistance/MECHANICAL-PROPERTIES/INDUCED CODEPOSITION/SLIDING WEAR/CORROSION-RESISTANCE/THIN-FILMS/NI/NANOCRYSTALLINE/TUNGSTEN/DEPOSITION/MICROSTRUCTURE

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出版年

2022
Surface & Coatings Technology

Surface & Coatings Technology

ISTP
ISSN：0257-8972
被引量2
参考文献量56
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