Influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited Al-Mg(-Sc-Zr)

Yubin Zhou; Zewu Qi; Baoqiang Cong; Yuan Zhao; Wei Guo; Zihao Jiang; Hongwei Li; Chaofang Dong; Yucheng Ji; Xing He; Haibo Wang; Sanbao Lin; Xiaoyu Cai; Bojin Qi

doi:10.1016/j.jmst.2024.12.025

Influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited Al-Mg(-Sc-Zr)

Yubin Zhou
, Zewu Qi^*
, Baoqiang Cong
, Yuan Zhao
, Wei Guo
, Zihao Jiang
, Hongwei Li
, Chaofang Dong
, Yucheng Ji
, Xing He
, Haibo Wang
, Sanbao Lin
, Xiaoyu Cai
, Bojin Qi

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Beihang University
Harbin Institute of Technology
Beijing Hangxing Machinery Manufacture
University of Science and Technology Beijing
CAS - Ningbo Institute of Material Technology and Engineering
North China University of Technology

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

27 Scopus citations

Abstract

The influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited (WADED) Al-Mg-(Sc-Zr) was studied. WADED Al-Mg showed a homogeneous microstructure with coarse equiaxed grains. WADED Al-Mg-Sc-Zr exhibited fine equiaxed grains along the molten pool boundary (MPB) and inter-layer zone (ITZ) while coarse equiaxed grains were inside the molten pool. The in-situ precipitation resulted in the primary Al₃(Sc, Zr) aggregated along MPB and ITZ while minor-sized secondary Al₃(Sc, Zr) existed inside the molten pool. WADED Al-Mg-Sc-Zr showed improved electrochemical behavior than Al-Mg. WADED Al-Mg presented random pittings that occurred near dispersed β-Al₃Mg₂. WADED Al-Mg-Sc-Zr exhibited pittings along MPB and ITZ, where Al₃(Sc, Zr) aggregated and induced galvanic corrosion. Corrosion anisotropy was obvious in Al-Mg-Sc-Zr since more MPBs and ITZs make the XOZ plane susceptive to localized corrosion.

Original language	English
Pages (from-to)	172-188
Number of pages	17
Journal	Journal of Materials Science and Technology
Volume	228
DOIs	https://doi.org/10.1016/j.jmst.2024.12.025
State	Published - 1 Sep 2025

Keywords

Corrosion anisotropy
In-situ precipitating behavior
Layered corrosion
Microstructure
WADED Al-Mg-Sc-Zr alloy

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10.1016/j.jmst.2024.12.025

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title = "Influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited Al-Mg(-Sc-Zr)",

abstract = "The influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited (WADED) Al-Mg-(Sc-Zr) was studied. WADED Al-Mg showed a homogeneous microstructure with coarse equiaxed grains. WADED Al-Mg-Sc-Zr exhibited fine equiaxed grains along the molten pool boundary (MPB) and inter-layer zone (ITZ) while coarse equiaxed grains were inside the molten pool. The in-situ precipitation resulted in the primary Al3(Sc, Zr) aggregated along MPB and ITZ while minor-sized secondary Al3(Sc, Zr) existed inside the molten pool. WADED Al-Mg-Sc-Zr showed improved electrochemical behavior than Al-Mg. WADED Al-Mg presented random pittings that occurred near dispersed β-Al3Mg2. WADED Al-Mg-Sc-Zr exhibited pittings along MPB and ITZ, where Al3(Sc, Zr) aggregated and induced galvanic corrosion. Corrosion anisotropy was obvious in Al-Mg-Sc-Zr since more MPBs and ITZs make the XOZ plane susceptive to localized corrosion.",

keywords = "Corrosion anisotropy, In-situ precipitating behavior, Layered corrosion, Microstructure, WADED Al-Mg-Sc-Zr alloy",

author = "Yubin Zhou and Zewu Qi and Baoqiang Cong and Yuan Zhao and Wei Guo and Zihao Jiang and Hongwei Li and Chaofang Dong and Yucheng Ji and Xing He and Haibo Wang and Sanbao Lin and Xiaoyu Cai and Bojin Qi",

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

year = "2025",

month = sep,

day = "1",

doi = "10.1016/j.jmst.2024.12.025",

language = "英语",

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T1 - Influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited Al-Mg(-Sc-Zr)

AU - Zhou, Yubin

AU - Qi, Zewu

AU - Cong, Baoqiang

AU - Zhao, Yuan

AU - Guo, Wei

AU - Jiang, Zihao

AU - Li, Hongwei

AU - Dong, Chaofang

AU - Ji, Yucheng

AU - He, Xing

AU - Wang, Haibo

AU - Lin, Sanbao

AU - Cai, Xiaoyu

AU - Qi, Bojin

PY - 2025/9/1

Y1 - 2025/9/1

N2 - The influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited (WADED) Al-Mg-(Sc-Zr) was studied. WADED Al-Mg showed a homogeneous microstructure with coarse equiaxed grains. WADED Al-Mg-Sc-Zr exhibited fine equiaxed grains along the molten pool boundary (MPB) and inter-layer zone (ITZ) while coarse equiaxed grains were inside the molten pool. The in-situ precipitation resulted in the primary Al3(Sc, Zr) aggregated along MPB and ITZ while minor-sized secondary Al3(Sc, Zr) existed inside the molten pool. WADED Al-Mg-Sc-Zr showed improved electrochemical behavior than Al-Mg. WADED Al-Mg presented random pittings that occurred near dispersed β-Al3Mg2. WADED Al-Mg-Sc-Zr exhibited pittings along MPB and ITZ, where Al3(Sc, Zr) aggregated and induced galvanic corrosion. Corrosion anisotropy was obvious in Al-Mg-Sc-Zr since more MPBs and ITZs make the XOZ plane susceptive to localized corrosion.

AB - The influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited (WADED) Al-Mg-(Sc-Zr) was studied. WADED Al-Mg showed a homogeneous microstructure with coarse equiaxed grains. WADED Al-Mg-Sc-Zr exhibited fine equiaxed grains along the molten pool boundary (MPB) and inter-layer zone (ITZ) while coarse equiaxed grains were inside the molten pool. The in-situ precipitation resulted in the primary Al3(Sc, Zr) aggregated along MPB and ITZ while minor-sized secondary Al3(Sc, Zr) existed inside the molten pool. WADED Al-Mg-Sc-Zr showed improved electrochemical behavior than Al-Mg. WADED Al-Mg presented random pittings that occurred near dispersed β-Al3Mg2. WADED Al-Mg-Sc-Zr exhibited pittings along MPB and ITZ, where Al3(Sc, Zr) aggregated and induced galvanic corrosion. Corrosion anisotropy was obvious in Al-Mg-Sc-Zr since more MPBs and ITZs make the XOZ plane susceptive to localized corrosion.

KW - Corrosion anisotropy

KW - In-situ precipitating behavior

KW - Layered corrosion

KW - Microstructure

KW - WADED Al-Mg-Sc-Zr alloy

UR - https://www.scopus.com/pages/publications/85218335802

U2 - 10.1016/j.jmst.2024.12.025

DO - 10.1016/j.jmst.2024.12.025

M3 - 文章

AN - SCOPUS:85218335802

SN - 1005-0302

VL - 228

SP - 172

EP - 188

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

ER -

Influence of in-situ precipitation on corrosion behaviors of wire arc directed energy deposited Al-Mg(-Sc-Zr)

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Keywords

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