Insight on corrosion behavior of friction stir welded AA2219/AA2195 joints in astronautical engineering

Yuming Xie; Xiangchen Meng; Feifan Wang; Yimeng Jiang; Xiaotian Ma; Long Wan; Yongxian Huang

doi:10.1016/j.corsci.2021.109800

Insight on corrosion behavior of friction stir welded AA2219/AA2195 joints in astronautical engineering

Yuming Xie
, Xiangchen Meng^*
, Feifan Wang
, Yimeng Jiang
, Xiaotian Ma
, Long Wan
, Yongxian Huang

^*Corresponding author for this work

School of Materials Science and Engineering

China Aerospace Science and Technology Corporation
Harbin Institute of Technology

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

125 Scopus citations

Abstract

Corrosion behavior of friction stir welded Al-Cu alloy and Al-Cu-Li alloy joints were revealed via immersion, intergranular, exfoliation and electrochemical corrosion. Precipitation-driven corrosion was discussed based on experiments and theoretical modeling. The corrosion potential of the entire joint was nobler than base materials, which was mainly attributed to solid solution and precipitation evolution of high equilibrium potential elements. The macro/micro galvanic effect induced by the redistribution of copper was studied with a numerical model to explain the relationship between precipitation evolution and corrosion resistance. Reducing heat input by increasing welding speed was an effective strategy to improve corrosion resistance.

Original language	English
Article number	109800
Journal	Corrosion Science
Volume	192
DOIs	https://doi.org/10.1016/j.corsci.2021.109800
State	Published - Nov 2021

Keywords

Aluminum
Corrosion
Friction stir welding
Microstructures
Precipitation

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10.1016/j.corsci.2021.109800

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title = "Insight on corrosion behavior of friction stir welded AA2219/AA2195 joints in astronautical engineering",

abstract = "Corrosion behavior of friction stir welded Al-Cu alloy and Al-Cu-Li alloy joints were revealed via immersion, intergranular, exfoliation and electrochemical corrosion. Precipitation-driven corrosion was discussed based on experiments and theoretical modeling. The corrosion potential of the entire joint was nobler than base materials, which was mainly attributed to solid solution and precipitation evolution of high equilibrium potential elements. The macro/micro galvanic effect induced by the redistribution of copper was studied with a numerical model to explain the relationship between precipitation evolution and corrosion resistance. Reducing heat input by increasing welding speed was an effective strategy to improve corrosion resistance.",

keywords = "Aluminum, Corrosion, Friction stir welding, Microstructures, Precipitation",

author = "Yuming Xie and Xiangchen Meng and Feifan Wang and Yimeng Jiang and Xiaotian Ma and Long Wan and Yongxian Huang",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = nov,

doi = "10.1016/j.corsci.2021.109800",

language = "英语",

volume = "192",

journal = "Corrosion Science",

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TY - JOUR

T1 - Insight on corrosion behavior of friction stir welded AA2219/AA2195 joints in astronautical engineering

AU - Xie, Yuming

AU - Meng, Xiangchen

AU - Wang, Feifan

AU - Jiang, Yimeng

AU - Ma, Xiaotian

AU - Wan, Long

AU - Huang, Yongxian

PY - 2021/11

Y1 - 2021/11

N2 - Corrosion behavior of friction stir welded Al-Cu alloy and Al-Cu-Li alloy joints were revealed via immersion, intergranular, exfoliation and electrochemical corrosion. Precipitation-driven corrosion was discussed based on experiments and theoretical modeling. The corrosion potential of the entire joint was nobler than base materials, which was mainly attributed to solid solution and precipitation evolution of high equilibrium potential elements. The macro/micro galvanic effect induced by the redistribution of copper was studied with a numerical model to explain the relationship between precipitation evolution and corrosion resistance. Reducing heat input by increasing welding speed was an effective strategy to improve corrosion resistance.

AB - Corrosion behavior of friction stir welded Al-Cu alloy and Al-Cu-Li alloy joints were revealed via immersion, intergranular, exfoliation and electrochemical corrosion. Precipitation-driven corrosion was discussed based on experiments and theoretical modeling. The corrosion potential of the entire joint was nobler than base materials, which was mainly attributed to solid solution and precipitation evolution of high equilibrium potential elements. The macro/micro galvanic effect induced by the redistribution of copper was studied with a numerical model to explain the relationship between precipitation evolution and corrosion resistance. Reducing heat input by increasing welding speed was an effective strategy to improve corrosion resistance.

KW - Aluminum

KW - Corrosion

KW - Friction stir welding

KW - Microstructures

KW - Precipitation

UR - https://www.scopus.com/pages/publications/85114193367

U2 - 10.1016/j.corsci.2021.109800

DO - 10.1016/j.corsci.2021.109800

M3 - 文章

AN - SCOPUS:85114193367

SN - 0010-938X

VL - 192

JO - Corrosion Science

JF - Corrosion Science

M1 - 109800

ER -

Insight on corrosion behavior of friction stir welded AA2219/AA2195 joints in astronautical engineering

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Keywords

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