A new approach to enhancing interlaminar strength and galvanic corrosion resistance of CFRP/Mg laminates

Yingcai Pan; Xuan Wu; Zheng Huang; Guoqing Wu; Siqiang Sun; Hengjian Ye; Zongke Zhang

doi:10.1016/j.compositesa.2017.11.009

A new approach to enhancing interlaminar strength and galvanic corrosion resistance of CFRP/Mg laminates

Yingcai Pan
, Xuan Wu
, Zheng Huang
, Guoqing Wu^*
, Siqiang Sun
, Hengjian Ye
, Zongke Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University
Inner Mongolia University of Technology

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

23 Scopus citations

Abstract

In the present research, AZ31 magnesium alloy was treated by electrochemical methods in Na₂SiO₃-KOH-KF and KOH-KF electrolytes, and the morphological features of films formed on magnesium alloy were assessed. Besides, the effect of Mg surface features on interlaminar failure load, failure mode and galvanic corrosion resistance of CFRP/Mg laminates were investigated. The results show that removal of silicate in the Na₂SiO₃-KOH-KF electrolyte can cause the transition of conversion film from ceramic-like oxide film to pitted oxide film. The pitted oxide film can effectively enhance the peel strength of CFRP/Mg laminates compared with the ceramic-like oxide film, and an average enhancement of 6.5 times was observed. The pitted oxide film on magnesium can provide an excellent protection against the galvanic corrosion in CFRP/Mg laminates as the ceramic-like oxide film.

Original language	English
Pages (from-to)	78-86
Number of pages	9
Journal	Composites Part A: Applied Science and Manufacturing
Volume	105
DOIs	https://doi.org/10.1016/j.compositesa.2017.11.009
State	Published - Feb 2018

Keywords

A. Laminates
B. Corrosion
B. Debonding
E. Surface treatments

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10.1016/j.compositesa.2017.11.009

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@article{c6055a43ba394bc39932f08d45a19ead,

title = "A new approach to enhancing interlaminar strength and galvanic corrosion resistance of CFRP/Mg laminates",

abstract = "In the present research, AZ31 magnesium alloy was treated by electrochemical methods in Na2SiO3-KOH-KF and KOH-KF electrolytes, and the morphological features of films formed on magnesium alloy were assessed. Besides, the effect of Mg surface features on interlaminar failure load, failure mode and galvanic corrosion resistance of CFRP/Mg laminates were investigated. The results show that removal of silicate in the Na2SiO3-KOH-KF electrolyte can cause the transition of conversion film from ceramic-like oxide film to pitted oxide film. The pitted oxide film can effectively enhance the peel strength of CFRP/Mg laminates compared with the ceramic-like oxide film, and an average enhancement of 6.5 times was observed. The pitted oxide film on magnesium can provide an excellent protection against the galvanic corrosion in CFRP/Mg laminates as the ceramic-like oxide film.",

keywords = "A. Laminates, B. Corrosion, B. Debonding, E. Surface treatments",

author = "Yingcai Pan and Xuan Wu and Zheng Huang and Guoqing Wu and Siqiang Sun and Hengjian Ye and Zongke Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

doi = "10.1016/j.compositesa.2017.11.009",

language = "英语",

volume = "105",

pages = "78--86",

journal = "Composites Part A: Applied Science and Manufacturing",

issn = "1359-835X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - A new approach to enhancing interlaminar strength and galvanic corrosion resistance of CFRP/Mg laminates

AU - Pan, Yingcai

AU - Wu, Xuan

AU - Huang, Zheng

AU - Wu, Guoqing

AU - Sun, Siqiang

AU - Ye, Hengjian

AU - Zhang, Zongke

PY - 2018/2

Y1 - 2018/2

N2 - In the present research, AZ31 magnesium alloy was treated by electrochemical methods in Na2SiO3-KOH-KF and KOH-KF electrolytes, and the morphological features of films formed on magnesium alloy were assessed. Besides, the effect of Mg surface features on interlaminar failure load, failure mode and galvanic corrosion resistance of CFRP/Mg laminates were investigated. The results show that removal of silicate in the Na2SiO3-KOH-KF electrolyte can cause the transition of conversion film from ceramic-like oxide film to pitted oxide film. The pitted oxide film can effectively enhance the peel strength of CFRP/Mg laminates compared with the ceramic-like oxide film, and an average enhancement of 6.5 times was observed. The pitted oxide film on magnesium can provide an excellent protection against the galvanic corrosion in CFRP/Mg laminates as the ceramic-like oxide film.

AB - In the present research, AZ31 magnesium alloy was treated by electrochemical methods in Na2SiO3-KOH-KF and KOH-KF electrolytes, and the morphological features of films formed on magnesium alloy were assessed. Besides, the effect of Mg surface features on interlaminar failure load, failure mode and galvanic corrosion resistance of CFRP/Mg laminates were investigated. The results show that removal of silicate in the Na2SiO3-KOH-KF electrolyte can cause the transition of conversion film from ceramic-like oxide film to pitted oxide film. The pitted oxide film can effectively enhance the peel strength of CFRP/Mg laminates compared with the ceramic-like oxide film, and an average enhancement of 6.5 times was observed. The pitted oxide film on magnesium can provide an excellent protection against the galvanic corrosion in CFRP/Mg laminates as the ceramic-like oxide film.

KW - A. Laminates

KW - B. Corrosion

KW - B. Debonding

KW - E. Surface treatments

UR - https://www.scopus.com/pages/publications/85034644793

U2 - 10.1016/j.compositesa.2017.11.009

DO - 10.1016/j.compositesa.2017.11.009

M3 - 文章

AN - SCOPUS:85034644793

SN - 1359-835X

VL - 105

SP - 78

EP - 86

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

A new approach to enhancing interlaminar strength and galvanic corrosion resistance of CFRP/Mg laminates

Abstract

Keywords

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