Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy

Zewu Qi; Bojin Qi; Baoqiang Cong; Ruize Zhang

doi:10.1016/j.matlet.2018.09.048

Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy

Zewu Qi
, Bojin Qi^*
, Baoqiang Cong
, Ruize Zhang

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Beihang University

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

66 Scopus citations

Abstract

Al-3.1Mg-2.0Si ternary aluminum alloy thin wall component was built with double – wire + arc additive manufacturing process by synchronously feeding ER5087 (Al-5Mg) and ER4043 (Al-5Si) wires. The microstructure and mechanical properties were tested and studied. The results showed the main existed phase were α-Al, Mg₂Si and Al₉Si. Al-Mg-Si eutectics (α-Al + Mg₂Si + Al₉Si) distributed along the grain boundary in α-Al matrix. The micro hardness was about 54.7HV. The ultimate tensile strength, yield strength and elongation of the deposit in horizontal direction were 176 MPa, 76.6 MPa and 11.4%, respectively. The properties in vertical direction were slightly lower. An isotropic feature of the tensile properties was exhibited in the deposit.

Original language	English
Pages (from-to)	348-350
Number of pages	3
Journal	Materials Letters
Volume	233
DOIs	https://doi.org/10.1016/j.matlet.2018.09.048
State	Published - 15 Dec 2018

Keywords

Al-Mg-Si aluminum alloy
Mechanical property
Metals and alloys
Microstructure
Wire + arc additive manufacturing

Access to Document

10.1016/j.matlet.2018.09.048

Cite this

@article{2ddadfe07a9f483184f24ce7ed737af6,

title = "Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy",

abstract = "Al-3.1Mg-2.0Si ternary aluminum alloy thin wall component was built with double – wire + arc additive manufacturing process by synchronously feeding ER5087 (Al-5Mg) and ER4043 (Al-5Si) wires. The microstructure and mechanical properties were tested and studied. The results showed the main existed phase were α-Al, Mg2Si and Al9Si. Al-Mg-Si eutectics (α-Al + Mg2Si + Al9Si) distributed along the grain boundary in α-Al matrix. The micro hardness was about 54.7HV. The ultimate tensile strength, yield strength and elongation of the deposit in horizontal direction were 176 MPa, 76.6 MPa and 11.4\%, respectively. The properties in vertical direction were slightly lower. An isotropic feature of the tensile properties was exhibited in the deposit.",

keywords = "Al-Mg-Si aluminum alloy, Mechanical property, Metals and alloys, Microstructure, Wire + arc additive manufacturing",

author = "Zewu Qi and Bojin Qi and Baoqiang Cong and Ruize Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2018.09.048",

language = "英语",

volume = "233",

pages = "348--350",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy

AU - Qi, Zewu

AU - Qi, Bojin

AU - Cong, Baoqiang

AU - Zhang, Ruize

PY - 2018/12/15

Y1 - 2018/12/15

N2 - Al-3.1Mg-2.0Si ternary aluminum alloy thin wall component was built with double – wire + arc additive manufacturing process by synchronously feeding ER5087 (Al-5Mg) and ER4043 (Al-5Si) wires. The microstructure and mechanical properties were tested and studied. The results showed the main existed phase were α-Al, Mg2Si and Al9Si. Al-Mg-Si eutectics (α-Al + Mg2Si + Al9Si) distributed along the grain boundary in α-Al matrix. The micro hardness was about 54.7HV. The ultimate tensile strength, yield strength and elongation of the deposit in horizontal direction were 176 MPa, 76.6 MPa and 11.4%, respectively. The properties in vertical direction were slightly lower. An isotropic feature of the tensile properties was exhibited in the deposit.

AB - Al-3.1Mg-2.0Si ternary aluminum alloy thin wall component was built with double – wire + arc additive manufacturing process by synchronously feeding ER5087 (Al-5Mg) and ER4043 (Al-5Si) wires. The microstructure and mechanical properties were tested and studied. The results showed the main existed phase were α-Al, Mg2Si and Al9Si. Al-Mg-Si eutectics (α-Al + Mg2Si + Al9Si) distributed along the grain boundary in α-Al matrix. The micro hardness was about 54.7HV. The ultimate tensile strength, yield strength and elongation of the deposit in horizontal direction were 176 MPa, 76.6 MPa and 11.4%, respectively. The properties in vertical direction were slightly lower. An isotropic feature of the tensile properties was exhibited in the deposit.

KW - Al-Mg-Si aluminum alloy

KW - Mechanical property

KW - Metals and alloys

KW - Microstructure

KW - Wire + arc additive manufacturing

UR - https://www.scopus.com/pages/publications/85053165995

U2 - 10.1016/j.matlet.2018.09.048

DO - 10.1016/j.matlet.2018.09.048

M3 - 文章

AN - SCOPUS:85053165995

SN - 0167-577X

VL - 233

SP - 348

EP - 350

JO - Materials Letters

JF - Materials Letters

ER -

Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy

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Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy

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Microstructure and mechanical properties of wire + arc additively manufactured Al-Mg-Si aluminum alloy