Effect and mechanism of Li content on the corrosion resistance of Al-Li alloy

Chao Han; Mei Yu; Jian Xiao; Zhong Yang; Zhenjiang Zhao; Xuejiao Jia; Songmei Li; Jianhua Liu

doi:10.1016/j.corsci.2025.112768

Effect and mechanism of Li content on the corrosion resistance of Al-Li alloy

Chao Han
, Mei Yu^*
, Jian Xiao
, Zhong Yang
, Zhenjiang Zhao
, Xuejiao Jia
, Songmei Li
, Jianhua Liu

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

9 Scopus citations

Abstract

The effect of Li content (0.5 wt%, 1.0 wt%, 1.5 wt% and 2.0 wt%) on corrosion resistance of Al-Li alloy was studied in 3.5 wt% NaCl. The corrosion resistance is affected by changes in the characteristics of the corrosion product layer caused by variations in Li content. The alloy with 1.5 wt% Li exhibited the best corrosion resistance, which is attributed to Li₂CO₃ generated on its surface. Li₂CO₃ layer acted as a barrier to corrosive Cl^- and O₂. The wide bandgap of Li₂CO₃ hindered the transfer of electrons, increasing the resistance of cathodic reaction and retarding further corrosion.

Original language	English
Article number	112768
Journal	Corrosion Science
Volume	246
DOIs	https://doi.org/10.1016/j.corsci.2025.112768
State	Published - 15 Apr 2025

Keywords

Al-Li alloy
Cathodic reduction reaction
Corrosion product layer
Diffusion
Electrochemical behavior

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10.1016/j.corsci.2025.112768

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title = "Effect and mechanism of Li content on the corrosion resistance of Al-Li alloy",

abstract = "The effect of Li content (0.5 wt\%, 1.0 wt\%, 1.5 wt\% and 2.0 wt\%) on corrosion resistance of Al-Li alloy was studied in 3.5 wt\% NaCl. The corrosion resistance is affected by changes in the characteristics of the corrosion product layer caused by variations in Li content. The alloy with 1.5 wt\% Li exhibited the best corrosion resistance, which is attributed to Li2CO3 generated on its surface. Li2CO3 layer acted as a barrier to corrosive Cl- and O2. The wide bandgap of Li2CO3 hindered the transfer of electrons, increasing the resistance of cathodic reaction and retarding further corrosion.",

keywords = "Al-Li alloy, Cathodic reduction reaction, Corrosion product layer, Diffusion, Electrochemical behavior",

author = "Chao Han and Mei Yu and Jian Xiao and Zhong Yang and Zhenjiang Zhao and Xuejiao Jia and Songmei Li and Jianhua Liu",

note = "Publisher Copyright: {\textcopyright} 2025",

year = "2025",

month = apr,

day = "15",

doi = "10.1016/j.corsci.2025.112768",

language = "英语",

volume = "246",

journal = "Corrosion Science",

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TY - JOUR

T1 - Effect and mechanism of Li content on the corrosion resistance of Al-Li alloy

AU - Han, Chao

AU - Yu, Mei

AU - Xiao, Jian

AU - Yang, Zhong

AU - Zhao, Zhenjiang

AU - Jia, Xuejiao

AU - Li, Songmei

AU - Liu, Jianhua

PY - 2025/4/15

Y1 - 2025/4/15

N2 - The effect of Li content (0.5 wt%, 1.0 wt%, 1.5 wt% and 2.0 wt%) on corrosion resistance of Al-Li alloy was studied in 3.5 wt% NaCl. The corrosion resistance is affected by changes in the characteristics of the corrosion product layer caused by variations in Li content. The alloy with 1.5 wt% Li exhibited the best corrosion resistance, which is attributed to Li2CO3 generated on its surface. Li2CO3 layer acted as a barrier to corrosive Cl- and O2. The wide bandgap of Li2CO3 hindered the transfer of electrons, increasing the resistance of cathodic reaction and retarding further corrosion.

AB - The effect of Li content (0.5 wt%, 1.0 wt%, 1.5 wt% and 2.0 wt%) on corrosion resistance of Al-Li alloy was studied in 3.5 wt% NaCl. The corrosion resistance is affected by changes in the characteristics of the corrosion product layer caused by variations in Li content. The alloy with 1.5 wt% Li exhibited the best corrosion resistance, which is attributed to Li2CO3 generated on its surface. Li2CO3 layer acted as a barrier to corrosive Cl- and O2. The wide bandgap of Li2CO3 hindered the transfer of electrons, increasing the resistance of cathodic reaction and retarding further corrosion.

KW - Al-Li alloy

KW - Cathodic reduction reaction

KW - Corrosion product layer

KW - Diffusion

KW - Electrochemical behavior

UR - https://www.scopus.com/pages/publications/85217076358

U2 - 10.1016/j.corsci.2025.112768

DO - 10.1016/j.corsci.2025.112768

M3 - 文章

AN - SCOPUS:85217076358

SN - 0010-938X

VL - 246

JO - Corrosion Science

JF - Corrosion Science

M1 - 112768

ER -

Effect and mechanism of Li content on the corrosion resistance of Al-Li alloy

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Keywords

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