Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems

Chong Ke; Yajie Wu; Yao Qiu; Junhao Duan; Nick Birbilis; Xiao Bo Chen

doi:10.1016/j.corsci.2016.10.017

Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems

Chong Ke
, Yajie Wu
, Yao Qiu
, Junhao Duan
, Nick Birbilis
, Xiao Bo Chen^*

^*Corresponding author for this work

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

66 Citations (Scopus)

Abstract

An environmentally-friendly ‘steam-coating’ treatment was employed to prepare protective coatings on magnesium (Mg) and its alloys against corrosion. This involved a hydrothermal surface treatment performed in water vapour using a closed stainless steel autoclave at 150 °C for 3 h. The correlation between coating functionality and alloy chemistry, including the concentration of alloying elements of aluminium, zinc and rare earth, was studied. It was determined that Al played a significant role in the formation of a protective Mg(OH)₂ coating, whilst Zn and RE elements were not a key contributor to protective development.

Original language	English
Pages (from-to)	145-159
Number of pages	15
Journal	Corrosion Science
Volume	113
DOIs	https://doi.org/10.1016/j.corsci.2016.10.017
Publication status	Published - 1 Dec 2016
Externally published	Yes

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10.1016/j.corsci.2016.10.017

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title = "Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems",

abstract = "An environmentally-friendly {\textquoteleft}steam-coating{\textquoteright} treatment was employed to prepare protective coatings on magnesium (Mg) and its alloys against corrosion. This involved a hydrothermal surface treatment performed in water vapour using a closed stainless steel autoclave at 150 °C for 3 h. The correlation between coating functionality and alloy chemistry, including the concentration of alloying elements of aluminium, zinc and rare earth, was studied. It was determined that Al played a significant role in the formation of a protective Mg(OH)2 coating, whilst Zn and RE elements were not a key contributor to protective development.",

keywords = "A. Magnesium, A. Rare earth elements, B. Polarisation, B. SEM, C. Interfaces, C. Passive film",

author = "Chong Ke and Yajie Wu and Yao Qiu and Junhao Duan and Nick Birbilis and Chen, \{Xiao Bo\}",

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language = "English",

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TY - JOUR

T1 - Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems

AU - Ke, Chong

AU - Wu, Yajie

AU - Qiu, Yao

AU - Duan, Junhao

AU - Birbilis, Nick

AU - Chen, Xiao Bo

PY - 2016/12/1

Y1 - 2016/12/1

N2 - An environmentally-friendly ‘steam-coating’ treatment was employed to prepare protective coatings on magnesium (Mg) and its alloys against corrosion. This involved a hydrothermal surface treatment performed in water vapour using a closed stainless steel autoclave at 150 °C for 3 h. The correlation between coating functionality and alloy chemistry, including the concentration of alloying elements of aluminium, zinc and rare earth, was studied. It was determined that Al played a significant role in the formation of a protective Mg(OH)2 coating, whilst Zn and RE elements were not a key contributor to protective development.

AB - An environmentally-friendly ‘steam-coating’ treatment was employed to prepare protective coatings on magnesium (Mg) and its alloys against corrosion. This involved a hydrothermal surface treatment performed in water vapour using a closed stainless steel autoclave at 150 °C for 3 h. The correlation between coating functionality and alloy chemistry, including the concentration of alloying elements of aluminium, zinc and rare earth, was studied. It was determined that Al played a significant role in the formation of a protective Mg(OH)2 coating, whilst Zn and RE elements were not a key contributor to protective development.

KW - A. Magnesium

KW - A. Rare earth elements

KW - B. Polarisation

KW - B. SEM

KW - C. Interfaces

KW - C. Passive film

UR - https://www.scopus.com/pages/publications/84994572040

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DO - 10.1016/j.corsci.2016.10.017

M3 - Article

SN - 0010-938X

VL - 113

SP - 145

EP - 159

JO - Corrosion Science

JF - Corrosion Science

ER -

Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems

Abstract

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