Characterization and electrochemical assessment of Al-Zn-In alloy with trivalent chromium process coating

Xi Wang; Fan Yang; Gopal Viswanathan; Shan Shan Wang; G. S. Frankel

doi:10.1016/j.corsci.2020.108933

Characterization and electrochemical assessment of Al-Zn-In alloy with trivalent chromium process coating

Xi Wang^*
, Fan Yang
, Gopal Viswanathan
, Shan Shan Wang
, G. S. Frankel

^*Corresponding author for this work

Ohio State University

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

9 Scopus citations

Abstract

To reduce self-corrosion of Al-Zn-In pigments in an Al-rich primer, trivalent chromium process (TCP) was applied to the pigments before mixing in the epoxy binder. The formation of TCP and its effects on both the Al-Zn-In bulk alloy and pigment particles were investigated in this study. The TCP layer on the Al-Zn-In alloy has a bilayer structure similar to TCP layers formed on other alloys. The corrosion rate of bulk Al-Zn-In alloy is reduced by the TCP treatment. The TCP layer likely blocks the access of Cl⁻ to the Al-Zn-In alloy, which reduces corrosion attack initiation.

Original language	English
Article number	108933
Journal	Corrosion Science
Volume	176
DOIs	https://doi.org/10.1016/j.corsci.2020.108933
State	Published - Nov 2020
Externally published	Yes

Keywords

Al-Zn-In alloy
Al-rich primer
Trivalent chromium process

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10.1016/j.corsci.2020.108933

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@article{050a0446f6244b57959876a8b3bb74eb,

title = "Characterization and electrochemical assessment of Al-Zn-In alloy with trivalent chromium process coating",

abstract = "To reduce self-corrosion of Al-Zn-In pigments in an Al-rich primer, trivalent chromium process (TCP) was applied to the pigments before mixing in the epoxy binder. The formation of TCP and its effects on both the Al-Zn-In bulk alloy and pigment particles were investigated in this study. The TCP layer on the Al-Zn-In alloy has a bilayer structure similar to TCP layers formed on other alloys. The corrosion rate of bulk Al-Zn-In alloy is reduced by the TCP treatment. The TCP layer likely blocks the access of Cl− to the Al-Zn-In alloy, which reduces corrosion attack initiation.",

keywords = "Al-Zn-In alloy, Al-rich primer, Trivalent chromium process",

author = "Xi Wang and Fan Yang and Gopal Viswanathan and Wang, \{Shan Shan\} and Frankel, \{G. S.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = nov,

doi = "10.1016/j.corsci.2020.108933",

language = "英语",

volume = "176",

journal = "Corrosion Science",

issn = "0010-938X",

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}

TY - JOUR

T1 - Characterization and electrochemical assessment of Al-Zn-In alloy with trivalent chromium process coating

AU - Wang, Xi

AU - Yang, Fan

AU - Viswanathan, Gopal

AU - Wang, Shan Shan

AU - Frankel, G. S.

PY - 2020/11

Y1 - 2020/11

N2 - To reduce self-corrosion of Al-Zn-In pigments in an Al-rich primer, trivalent chromium process (TCP) was applied to the pigments before mixing in the epoxy binder. The formation of TCP and its effects on both the Al-Zn-In bulk alloy and pigment particles were investigated in this study. The TCP layer on the Al-Zn-In alloy has a bilayer structure similar to TCP layers formed on other alloys. The corrosion rate of bulk Al-Zn-In alloy is reduced by the TCP treatment. The TCP layer likely blocks the access of Cl− to the Al-Zn-In alloy, which reduces corrosion attack initiation.

AB - To reduce self-corrosion of Al-Zn-In pigments in an Al-rich primer, trivalent chromium process (TCP) was applied to the pigments before mixing in the epoxy binder. The formation of TCP and its effects on both the Al-Zn-In bulk alloy and pigment particles were investigated in this study. The TCP layer on the Al-Zn-In alloy has a bilayer structure similar to TCP layers formed on other alloys. The corrosion rate of bulk Al-Zn-In alloy is reduced by the TCP treatment. The TCP layer likely blocks the access of Cl− to the Al-Zn-In alloy, which reduces corrosion attack initiation.

KW - Al-Zn-In alloy

KW - Al-rich primer

KW - Trivalent chromium process

UR - https://www.scopus.com/pages/publications/85089539433

U2 - 10.1016/j.corsci.2020.108933

DO - 10.1016/j.corsci.2020.108933

M3 - 文章

AN - SCOPUS:85089539433

SN - 0010-938X

VL - 176

JO - Corrosion Science

JF - Corrosion Science

M1 - 108933

ER -

Characterization and electrochemical assessment of Al-Zn-In alloy with trivalent chromium process coating

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Keywords

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