Microstructure and Performance of Nano-Al<sub>2</sub>O<sub>3</sub>/Ni-Co Composite Coatings by Electro-Brush Plating-Reference-Cited by-同舟云学术

Microstructure and Performance of Nano-Al₂O₃/Ni-Co Composite Coatings by Electro-Brush Plating

Published:2012-02 Issue: Volume:482-484 Page:2371-2375
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Wang Xiao He¹,Xu Bin Shi¹,Hu Zhen Feng¹,Dong Shi Yun¹

Affiliation:

1. Academy of Armored Forces Engineering

Abstract

To remanufacture hard chromium-plated workpiece, nano-Al2O3/Ni-Co composite coatings and Ni-Co alloy coatings are developed using electric brush plating technology. Scanning electron microscopy (SEM) and transmission electron microscope (TEM) are used to analyze the surface morphology, phase structure and wear properties of coatings. The surface morphology of nano-composite coating is more compact. The nano-particles are well-distributed in the coating and bounded tightly with the substrate. The hardness of composite coating is HV1027, increased approximately 38% compared with Ni-Co alloy coating, overtaking the hard chrome plating. The results of sliding wear test shows that the nano-composite coating reduces friction coefficient, increases wear resistance significantly and exceeds the chromium plating.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.482-484.2371.pdf

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