Laser nanocrystallisation and corrosion behaviour of electroless Ni-W-P coating with high phosphorus content

H. Liu; H. L. Yao; F. Viejo; G. Harrison; George E Thompson; Z. Liu

doi:10.1179/0020296714Z.000000000171

Laser nanocrystallisation and corrosion behaviour of electroless Ni-W-P coating with high phosphorus content

H. Liu, H. L. Yao, F. Viejo, G. Harrison, George E Thompson, Z. Liu

Research output: Contribution to journal › Article › peer-review

Abstract

This paper reports an investigation of microstructural characteristics in electroless Ni-3.9W-13.4P (wt.%) coating by laser nanocrystallisation using a quantitative X-ray diffraction (XRD) method and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX). The corrosion resistance of the coatings before and after laser treatment has been evaluated in 0.5 M H2SO4 solution by potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques. The results show that the laser treatment improves the corrosion resistance of the coatings. The corrosion mechanism has been studied and correlated to the microstructural characteristics including volume fraction of /(Ni3P)//(total), microstrain, and the crystallite size of the Ni and Ni3P phases.

Original language	English
Pages (from-to)	212-217
Number of pages	5
Journal	Institute of Metal Finishing. Transactions
Volume	92
Issue number	4
DOIs	https://doi.org/10.1179/0020296714Z.000000000171
Publication status	Published - Jul 2014

Keywords

Electroless Ni-W-P coating; High phosphorus; Nano-crystallisation; EIS; Polarisation; Corrosion resistance

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10.1179/0020296714Z.000000000171

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )
Thompson, G. (PI), Bate, P. (CoI), Prangnell, P. (CoI), Preuss, M. (CoI), Quinta Da Fonseca, J. (CoI), Robson, J. (CoI), Skeldon, P. (CoI) & Zhou, X. (CoI)
1/02/10 → 31/07/15
Project: Research

Cite this

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title = "Laser nanocrystallisation and corrosion behaviour of electroless Ni-W-P coating with high phosphorus content",

abstract = "This paper reports an investigation of microstructural characteristics in electroless Ni-3.9W-13.4P (wt.%) coating by laser nanocrystallisation using a quantitative X-ray diffraction (XRD) method and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX). The corrosion resistance of the coatings before and after laser treatment has been evaluated in 0.5 M H2SO4 solution by potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques. The results show that the laser treatment improves the corrosion resistance of the coatings. The corrosion mechanism has been studied and correlated to the microstructural characteristics including volume fraction of /(Ni3P)//(total), microstrain, and the crystallite size of the Ni and Ni3P phases.",

keywords = "Electroless Ni-W-P coating; High phosphorus; Nano-crystallisation; EIS; Polarisation; Corrosion resistance",

author = "H. Liu and Yao, {H. L.} and F. Viejo and G. Harrison and Thompson, {George E} and Z. Liu",

year = "2014",

month = jul,

doi = "10.1179/0020296714Z.000000000171",

language = "English",

volume = "92",

pages = "212--217",

journal = "Institute of Metal Finishing. Transactions ",

issn = "1745-9192",

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TY - JOUR

T1 - Laser nanocrystallisation and corrosion behaviour of electroless Ni-W-P coating with high phosphorus content

AU - Liu, H.

AU - Yao, H. L.

AU - Viejo, F.

AU - Harrison, G.

AU - Thompson, George E

AU - Liu, Z.

PY - 2014/7

Y1 - 2014/7

N2 - This paper reports an investigation of microstructural characteristics in electroless Ni-3.9W-13.4P (wt.%) coating by laser nanocrystallisation using a quantitative X-ray diffraction (XRD) method and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX). The corrosion resistance of the coatings before and after laser treatment has been evaluated in 0.5 M H2SO4 solution by potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques. The results show that the laser treatment improves the corrosion resistance of the coatings. The corrosion mechanism has been studied and correlated to the microstructural characteristics including volume fraction of /(Ni3P)//(total), microstrain, and the crystallite size of the Ni and Ni3P phases.

AB - This paper reports an investigation of microstructural characteristics in electroless Ni-3.9W-13.4P (wt.%) coating by laser nanocrystallisation using a quantitative X-ray diffraction (XRD) method and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX). The corrosion resistance of the coatings before and after laser treatment has been evaluated in 0.5 M H2SO4 solution by potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques. The results show that the laser treatment improves the corrosion resistance of the coatings. The corrosion mechanism has been studied and correlated to the microstructural characteristics including volume fraction of /(Ni3P)//(total), microstrain, and the crystallite size of the Ni and Ni3P phases.

KW - Electroless Ni-W-P coating; High phosphorus; Nano-crystallisation; EIS; Polarisation; Corrosion resistance

U2 - 10.1179/0020296714Z.000000000171

DO - 10.1179/0020296714Z.000000000171

M3 - Article

SN - 1745-9192

VL - 92

SP - 212

EP - 217

JO - Institute of Metal Finishing. Transactions

JF - Institute of Metal Finishing. Transactions

IS - 4

ER -

Laser nanocrystallisation and corrosion behaviour of electroless Ni-W-P coating with high phosphorus content

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Projects

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )

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