The corrosion behavior and tensile strength of the 2060 Al-Li alloy with different heat treatments

Xingwei Zheng; Haohao Yin; Yan Shu; Zhenhua Chu; Zhiwei Liu

doi:10.3389/fmats.2022.1003204

The corrosion behavior and tensile strength of the 2060 Al-Li alloy with different heat treatments

Xingwei Zheng
, Haohao Yin
, Yan Shu
, Zhenhua Chu
, Zhiwei Liu

School of Materials Science and Engineering

Donghua University
Shanghai Ocean University
Shanghai Maritime University

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

3 Scopus citations

Abstract

The structural safety and service life of civil aircraft can be decreased by corrosion damage to their aluminum components caused by long-term service in corrosive conditions. In this work, the effect of heat treatment on corrosion behavior and tensile strength was systematically analyzed for 2060 Al-Li alloy immersed in 3.5 wt% NaCl solution for different corrosion times. The results show that the corrosion depths of the 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h are 85 and 93 μm, respectively. The ultimate tensile strengths of 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h were reduced by 5.8 and 6.4%, respectively. Linear relationships between tensile strength and the corrosion depths of 2060-T4 and 2060-T6 Al-Li alloys were established as σ_res = 486-033h and σ_res547-0.35h respectively.

Original language	English
Article number	1003204
Journal	Frontiers in Materials
Volume	9
DOIs	https://doi.org/10.3389/fmats.2022.1003204
State	Published - 15 Sep 2022

Keywords

Al-Li alloy
corrosion
corrosion depth
heat treatment
residual strength

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10.3389/fmats.2022.1003204

Cite this

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title = "The corrosion behavior and tensile strength of the 2060 Al-Li alloy with different heat treatments",

abstract = "The structural safety and service life of civil aircraft can be decreased by corrosion damage to their aluminum components caused by long-term service in corrosive conditions. In this work, the effect of heat treatment on corrosion behavior and tensile strength was systematically analyzed for 2060 Al-Li alloy immersed in 3.5 wt\% NaCl solution for different corrosion times. The results show that the corrosion depths of the 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h are 85 and 93 μm, respectively. The ultimate tensile strengths of 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h were reduced by 5.8 and 6.4\%, respectively. Linear relationships between tensile strength and the corrosion depths of 2060-T4 and 2060-T6 Al-Li alloys were established as σres = 486-033h and σres547-0.35h respectively.",

keywords = "Al-Li alloy, corrosion, corrosion depth, heat treatment, residual strength",

author = "Xingwei Zheng and Haohao Yin and Yan Shu and Zhenhua Chu and Zhiwei Liu",

note = "Publisher Copyright: Copyright {\textcopyright} 2022 Zheng, Yin, Shu, Chu and Liu.",

year = "2022",

month = sep,

day = "15",

doi = "10.3389/fmats.2022.1003204",

language = "英语",

volume = "9",

journal = "Frontiers in Materials",

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TY - JOUR

T1 - The corrosion behavior and tensile strength of the 2060 Al-Li alloy with different heat treatments

AU - Zheng, Xingwei

AU - Yin, Haohao

AU - Shu, Yan

AU - Chu, Zhenhua

AU - Liu, Zhiwei

PY - 2022/9/15

Y1 - 2022/9/15

N2 - The structural safety and service life of civil aircraft can be decreased by corrosion damage to their aluminum components caused by long-term service in corrosive conditions. In this work, the effect of heat treatment on corrosion behavior and tensile strength was systematically analyzed for 2060 Al-Li alloy immersed in 3.5 wt% NaCl solution for different corrosion times. The results show that the corrosion depths of the 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h are 85 and 93 μm, respectively. The ultimate tensile strengths of 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h were reduced by 5.8 and 6.4%, respectively. Linear relationships between tensile strength and the corrosion depths of 2060-T4 and 2060-T6 Al-Li alloys were established as σres = 486-033h and σres547-0.35h respectively.

AB - The structural safety and service life of civil aircraft can be decreased by corrosion damage to their aluminum components caused by long-term service in corrosive conditions. In this work, the effect of heat treatment on corrosion behavior and tensile strength was systematically analyzed for 2060 Al-Li alloy immersed in 3.5 wt% NaCl solution for different corrosion times. The results show that the corrosion depths of the 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h are 85 and 93 μm, respectively. The ultimate tensile strengths of 2060-T4 and 2060-T6 Al-Li alloys immersed for 720 h were reduced by 5.8 and 6.4%, respectively. Linear relationships between tensile strength and the corrosion depths of 2060-T4 and 2060-T6 Al-Li alloys were established as σres = 486-033h and σres547-0.35h respectively.

KW - Al-Li alloy

KW - corrosion

KW - corrosion depth

KW - heat treatment

KW - residual strength

UR - https://www.scopus.com/pages/publications/85139101626

U2 - 10.3389/fmats.2022.1003204

DO - 10.3389/fmats.2022.1003204

M3 - 文章

AN - SCOPUS:85139101626

SN - 2296-8016

VL - 9

JO - Frontiers in Materials

JF - Frontiers in Materials

M1 - 1003204

ER -

The corrosion behavior and tensile strength of the 2060 Al-Li alloy with different heat treatments

Abstract

Keywords

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