Locally oxidized film for photocathodic protection of nanocrystalline Zn–Ni alloy in simulated seawater

Zhongbao Feng; Dagang Li; Lin Wang; Qiang Sun; Pengfei Xing; Maozhong An

doi:10.1016/j.matlet.2018.09.045

Locally oxidized film for photocathodic protection of nanocrystalline Zn–Ni alloy in simulated seawater

Zhongbao Feng^*
, Dagang Li
, Lin Wang
, Qiang Sun
, Pengfei Xing
, Maozhong An

^*Corresponding author for this work

Northeastern University China
School of Chemistry and Chemical Engineering, Harbin Institute of Technology

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

3 Scopus citations

Abstract

Nanocrystalline Zn–Ni alloy is easily to be oxidized after exposed in the air, and the formed locally oxidized film can provide an additionally novel photocathodic protection to the bare grain surface under sunlight illumination in simulated seawater. A much lower corrosion rate of nearly 30% is obtained for locally oxidized nanocrystalline Zn–Ni alloy under sunlight condition compared to the dark condition. The anticorrosion mechanism is achieved by cooperating following two mechanisms: photocathodic protection of photoelectrons on the reaction of zinc oxidation, and shielding effect of the formed new zinc based precipitation under sunlight illumination. This is a simple and economical approach with the promise for large-scale application in enhancing corrosion resistance of Zn–Ni alloys.

Original language	English
Pages (from-to)	267-269
Number of pages	3
Journal	Materials Letters
Volume	233
DOIs	https://doi.org/10.1016/j.matlet.2018.09.045
State	Published - 15 Dec 2018
Externally published	Yes

Keywords

Corrosion
Nanocrystalline
Oxidized film
Photocathodic protection
Zn–Ni alloy

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10.1016/j.matlet.2018.09.045

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@article{820d370750984a0b9a68fc487c1c3360,

title = "Locally oxidized film for photocathodic protection of nanocrystalline Zn–Ni alloy in simulated seawater",

abstract = "Nanocrystalline Zn–Ni alloy is easily to be oxidized after exposed in the air, and the formed locally oxidized film can provide an additionally novel photocathodic protection to the bare grain surface under sunlight illumination in simulated seawater. A much lower corrosion rate of nearly 30\% is obtained for locally oxidized nanocrystalline Zn–Ni alloy under sunlight condition compared to the dark condition. The anticorrosion mechanism is achieved by cooperating following two mechanisms: photocathodic protection of photoelectrons on the reaction of zinc oxidation, and shielding effect of the formed new zinc based precipitation under sunlight illumination. This is a simple and economical approach with the promise for large-scale application in enhancing corrosion resistance of Zn–Ni alloys.",

keywords = "Corrosion, Nanocrystalline, Oxidized film, Photocathodic protection, Zn–Ni alloy",

author = "Zhongbao Feng and Dagang Li and Lin Wang and Qiang Sun and Pengfei Xing and Maozhong An",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2018.09.045",

language = "英语",

volume = "233",

pages = "267--269",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Locally oxidized film for photocathodic protection of nanocrystalline Zn–Ni alloy in simulated seawater

AU - Feng, Zhongbao

AU - Li, Dagang

AU - Wang, Lin

AU - Sun, Qiang

AU - Xing, Pengfei

AU - An, Maozhong

PY - 2018/12/15

Y1 - 2018/12/15

N2 - Nanocrystalline Zn–Ni alloy is easily to be oxidized after exposed in the air, and the formed locally oxidized film can provide an additionally novel photocathodic protection to the bare grain surface under sunlight illumination in simulated seawater. A much lower corrosion rate of nearly 30% is obtained for locally oxidized nanocrystalline Zn–Ni alloy under sunlight condition compared to the dark condition. The anticorrosion mechanism is achieved by cooperating following two mechanisms: photocathodic protection of photoelectrons on the reaction of zinc oxidation, and shielding effect of the formed new zinc based precipitation under sunlight illumination. This is a simple and economical approach with the promise for large-scale application in enhancing corrosion resistance of Zn–Ni alloys.

AB - Nanocrystalline Zn–Ni alloy is easily to be oxidized after exposed in the air, and the formed locally oxidized film can provide an additionally novel photocathodic protection to the bare grain surface under sunlight illumination in simulated seawater. A much lower corrosion rate of nearly 30% is obtained for locally oxidized nanocrystalline Zn–Ni alloy under sunlight condition compared to the dark condition. The anticorrosion mechanism is achieved by cooperating following two mechanisms: photocathodic protection of photoelectrons on the reaction of zinc oxidation, and shielding effect of the formed new zinc based precipitation under sunlight illumination. This is a simple and economical approach with the promise for large-scale application in enhancing corrosion resistance of Zn–Ni alloys.

KW - Corrosion

KW - Nanocrystalline

KW - Oxidized film

KW - Photocathodic protection

KW - Zn–Ni alloy

UR - https://www.scopus.com/pages/publications/85053032548

U2 - 10.1016/j.matlet.2018.09.045

DO - 10.1016/j.matlet.2018.09.045

M3 - 文章

AN - SCOPUS:85053032548

SN - 0167-577X

VL - 233

SP - 267

EP - 269

JO - Materials Letters

JF - Materials Letters

ER -

Locally oxidized film for photocathodic protection of nanocrystalline Zn–Ni alloy in simulated seawater

Abstract

Keywords

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