Nickel-boron plating on magnesium and AZ91D alloy by a chromium-free electroless process

E. Correa; A. A. Zuleta; M. Sepúlveda; L. Guerra; J. G. Castaño; F. Echeverría; H. Liu; P. Skeldon; G. E. Thompson

doi:10.1016/j.surfcoat.2011.12.023

Nickel-boron plating on magnesium and AZ91D alloy by a chromium-free electroless process

E. Correa
, A. A. Zuleta
, M. Sepúlveda
, L. Guerra
, J. G. Castaño
, F. Echeverría
, H. Liu
, P. Skeldon
, G. E. Thompson

Producción científica: Contribución a una revista › Artículo en revista científica indexada › revisión exhaustiva

31 Citas (Scopus)

Resumen

Ni-B coatings have been deposited directly on commercial purity magnesium and AZ91D magnesium alloy by a chromium-free electroless process and characterized using scanning electron microscopy, glow discharge optical emission spectroscopy, gravimetric measurements and, for corrosion evaluation, hydrogen evolution. The surfaces of the coatings reveal a typical cauliflower-type appearance and form at a rate of ~8 to 13μm/h. The nickel and boron contents of the coatings are relatively uniform across the whole thickness. The addition of NH ₄HF ₂ to the electroless bath improves the corrosion resistance provided by the coatings during immersion of coated substrates in sodium chloride solution.

Idioma original	Inglés
Páginas (desde-hasta)	3088-3093
Número de páginas	6
Publicación	Surface and Coatings Technology
Volumen	206
N.º	13
DOI	https://doi.org/10.1016/j.surfcoat.2011.12.023
Estado	Publicada - 25 feb. 2012
Publicado de forma externa	Sí

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10.1016/j.surfcoat.2011.12.023

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title = "Nickel-boron plating on magnesium and AZ91D alloy by a chromium-free electroless process",

abstract = "Ni-B coatings have been deposited directly on commercial purity magnesium and AZ91D magnesium alloy by a chromium-free electroless process and characterized using scanning electron microscopy, glow discharge optical emission spectroscopy, gravimetric measurements and, for corrosion evaluation, hydrogen evolution. The surfaces of the coatings reveal a typical cauliflower-type appearance and form at a rate of \textasciitilde{}8 to 13μm/h. The nickel and boron contents of the coatings are relatively uniform across the whole thickness. The addition of NH 4HF 2 to the electroless bath improves the corrosion resistance provided by the coatings during immersion of coated substrates in sodium chloride solution.",

keywords = "Alloy, Electroless, Magnesium, Ni-B",

author = "E. Correa and Zuleta, \{A. A.\} and M. Sep{\'u}lveda and L. Guerra and Casta{\~n}o, \{J. G.\} and F. Echeverr{\'i}a and H. Liu and P. Skeldon and Thompson, \{G. E.\}",

note = "Funding Information: The authors are grateful to the “ Departamento Administrativo de Ciencia, Tecnolog{\'i}a e Innovaci{\'o}n — COLCIENCIAS ”, Universidad de Antioquia and The University of Manchester for financial assistance (project 111545221131 ). The authors also thank the Engineering and Physical Sciences Research Council (U.K.) for financial support (programme grant: LATEST2 ) and Professor Jun Yen Uan, Department of Materials Science and Engineering National, Chung Hsing University, Taiwan for supply of the magnesium alloy.",

year = "2012",

month = feb,

day = "25",

doi = "10.1016/j.surfcoat.2011.12.023",

language = "Ingl{\'e}s",

volume = "206",

pages = "3088--3093",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

number = "13",

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TY - JOUR

T1 - Nickel-boron plating on magnesium and AZ91D alloy by a chromium-free electroless process

AU - Correa, E.

AU - Zuleta, A. A.

AU - Sepúlveda, M.

AU - Guerra, L.

AU - Castaño, J. G.

AU - Echeverría, F.

AU - Liu, H.

AU - Skeldon, P.

AU - Thompson, G. E.

N1 - Funding Information: The authors are grateful to the “ Departamento Administrativo de Ciencia, Tecnología e Innovación — COLCIENCIAS ”, Universidad de Antioquia and The University of Manchester for financial assistance (project 111545221131 ). The authors also thank the Engineering and Physical Sciences Research Council (U.K.) for financial support (programme grant: LATEST2 ) and Professor Jun Yen Uan, Department of Materials Science and Engineering National, Chung Hsing University, Taiwan for supply of the magnesium alloy.

PY - 2012/2/25

Y1 - 2012/2/25

N2 - Ni-B coatings have been deposited directly on commercial purity magnesium and AZ91D magnesium alloy by a chromium-free electroless process and characterized using scanning electron microscopy, glow discharge optical emission spectroscopy, gravimetric measurements and, for corrosion evaluation, hydrogen evolution. The surfaces of the coatings reveal a typical cauliflower-type appearance and form at a rate of ~8 to 13μm/h. The nickel and boron contents of the coatings are relatively uniform across the whole thickness. The addition of NH 4HF 2 to the electroless bath improves the corrosion resistance provided by the coatings during immersion of coated substrates in sodium chloride solution.

AB - Ni-B coatings have been deposited directly on commercial purity magnesium and AZ91D magnesium alloy by a chromium-free electroless process and characterized using scanning electron microscopy, glow discharge optical emission spectroscopy, gravimetric measurements and, for corrosion evaluation, hydrogen evolution. The surfaces of the coatings reveal a typical cauliflower-type appearance and form at a rate of ~8 to 13μm/h. The nickel and boron contents of the coatings are relatively uniform across the whole thickness. The addition of NH 4HF 2 to the electroless bath improves the corrosion resistance provided by the coatings during immersion of coated substrates in sodium chloride solution.

KW - Alloy

KW - Electroless

KW - Magnesium

KW - Ni-B

UR - https://www.scopus.com/pages/publications/84862821502

U2 - 10.1016/j.surfcoat.2011.12.023

DO - 10.1016/j.surfcoat.2011.12.023

M3 - Artículo en revista científica indexada

AN - SCOPUS:84862821502

SN - 0257-8972

VL - 206

SP - 3088

EP - 3093

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 13

ER -

Nickel-boron plating on magnesium and AZ91D alloy by a chromium-free electroless process

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