Effect of surface abrasion on pitting corrosion of Al-Li alloy

Jianhua Liu; Kuo Zhao; Mei Yu; Songmei Li

doi:10.1016/j.corsci.2018.04.010

Effect of surface abrasion on pitting corrosion of Al-Li alloy

Jianhua Liu
, Kuo Zhao
, Mei Yu^*
, Songmei Li

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

70 Scopus citations

Abstract

The effects of surface abrasion on microstructure and pitting corrosion of 2297 Al-Li alloy were investigated. Statistical analysis reveals that surface abrasion alters surface roughness and induces partial dissolution of intermetallic particles. A smoother surface finish reduces the population density and the average size of AlCuMnFe particles, due to enhanced dissolution of AlCuMnFe particles. All abraded samples undergo pitting corrosion, and surface layer dissolution (except pitting) is not observed. Smoother surface has lower pitting susceptibility and better corrosion resistance than the rougher surface. The intermetallic particles significantly affect pitting corrosion of 2297 Al-Li alloy, while surface roughness has small influence.

Original language	English
Pages (from-to)	75-84
Number of pages	10
Journal	Corrosion Science
Volume	138
DOIs	https://doi.org/10.1016/j.corsci.2018.04.010
State	Published - 1 Jul 2018

Keywords

A. Aluminium
A. Intermetallics
B. EIS
B. Polarization
C. Pitting corrosion

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10.1016/j.corsci.2018.04.010

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title = "Effect of surface abrasion on pitting corrosion of Al-Li alloy",

abstract = "The effects of surface abrasion on microstructure and pitting corrosion of 2297 Al-Li alloy were investigated. Statistical analysis reveals that surface abrasion alters surface roughness and induces partial dissolution of intermetallic particles. A smoother surface finish reduces the population density and the average size of AlCuMnFe particles, due to enhanced dissolution of AlCuMnFe particles. All abraded samples undergo pitting corrosion, and surface layer dissolution (except pitting) is not observed. Smoother surface has lower pitting susceptibility and better corrosion resistance than the rougher surface. The intermetallic particles significantly affect pitting corrosion of 2297 Al-Li alloy, while surface roughness has small influence.",

keywords = "A. Aluminium, A. Intermetallics, B. EIS, B. Polarization, C. Pitting corrosion",

author = "Jianhua Liu and Kuo Zhao and Mei Yu and Songmei Li",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jul,

day = "1",

doi = "10.1016/j.corsci.2018.04.010",

language = "英语",

volume = "138",

pages = "75--84",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - Effect of surface abrasion on pitting corrosion of Al-Li alloy

AU - Liu, Jianhua

AU - Zhao, Kuo

AU - Yu, Mei

AU - Li, Songmei

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The effects of surface abrasion on microstructure and pitting corrosion of 2297 Al-Li alloy were investigated. Statistical analysis reveals that surface abrasion alters surface roughness and induces partial dissolution of intermetallic particles. A smoother surface finish reduces the population density and the average size of AlCuMnFe particles, due to enhanced dissolution of AlCuMnFe particles. All abraded samples undergo pitting corrosion, and surface layer dissolution (except pitting) is not observed. Smoother surface has lower pitting susceptibility and better corrosion resistance than the rougher surface. The intermetallic particles significantly affect pitting corrosion of 2297 Al-Li alloy, while surface roughness has small influence.

AB - The effects of surface abrasion on microstructure and pitting corrosion of 2297 Al-Li alloy were investigated. Statistical analysis reveals that surface abrasion alters surface roughness and induces partial dissolution of intermetallic particles. A smoother surface finish reduces the population density and the average size of AlCuMnFe particles, due to enhanced dissolution of AlCuMnFe particles. All abraded samples undergo pitting corrosion, and surface layer dissolution (except pitting) is not observed. Smoother surface has lower pitting susceptibility and better corrosion resistance than the rougher surface. The intermetallic particles significantly affect pitting corrosion of 2297 Al-Li alloy, while surface roughness has small influence.

KW - A. Aluminium

KW - A. Intermetallics

KW - B. EIS

KW - B. Polarization

KW - C. Pitting corrosion

UR - https://www.scopus.com/pages/publications/85045573489

U2 - 10.1016/j.corsci.2018.04.010

DO - 10.1016/j.corsci.2018.04.010

M3 - 文章

AN - SCOPUS:85045573489

SN - 0010-938X

VL - 138

SP - 75

EP - 84

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of surface abrasion on pitting corrosion of Al-Li alloy

Abstract

Keywords

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