A high-strength AlSiMg1.4 alloy fabricated by selective laser melting

Yaoxiang Geng; Yingmin Wang; Junhua Xu; Shaobo Mi; Shimin Fan; Yakai Xiao; Yi Wu; Junhua Luan

doi:10.1016/j.jallcom.2021.159103

A high-strength AlSiMg1.4 alloy fabricated by selective laser melting

Yaoxiang Geng^*, Yingmin Wang^*, Junhua Xu, Shaobo Mi, Shimin Fan, Yakai Xiao, Yi Wu, Junhua Luan

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

40 Citations (Scopus)

Abstract

A high Mg-content AlSiMg1.4 alloy was designed for selective laser melting (SLM) processing. The SLMed AlSiMg1.4 alloy exhibits a high yield strength of 341±14 MPa and a high ultimate tensile strength of 518±6 MPa, along with a total elongation of 7.1±0.4%. The composition profile in the α-Al matrix of the alloy manifests in-phase concentration fluctuations of Mg and Si. The presence of high density Mg-Si atomic clusters as strong obstacles to dislocation gliding is suggested to provide an additional strengthening mechanism for the SLMed Al-Si-Mg alloy.

Original language	English
Article number	159103
Journal	Journal of Alloys and Compounds
Volume	867
Online published	13 Feb 2021
DOIs	https://doi.org/10.1016/j.jallcom.2021.159103
Publication status	Published - 25 Jun 2021

Research Keywords

AlSiMg1.4 alloy
Mechanical properties
Microstructure
Selective laser melting

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10.1016/j.jallcom.2021.159103

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title = "A high-strength AlSiMg1.4 alloy fabricated by selective laser melting",

abstract = "A high Mg-content AlSiMg1.4 alloy was designed for selective laser melting (SLM) processing. The SLMed AlSiMg1.4 alloy exhibits a high yield strength of 341±14 MPa and a high ultimate tensile strength of 518±6 MPa, along with a total elongation of 7.1±0.4%. The composition profile in the α-Al matrix of the alloy manifests in-phase concentration fluctuations of Mg and Si. The presence of high density Mg-Si atomic clusters as strong obstacles to dislocation gliding is suggested to provide an additional strengthening mechanism for the SLMed Al-Si-Mg alloy.",

keywords = "AlSiMg1.4 alloy, Mechanical properties, Microstructure, Selective laser melting",

author = "Yaoxiang Geng and Yingmin Wang and Junhua Xu and Shaobo Mi and Shimin Fan and Yakai Xiao and Yi Wu and Junhua Luan",

year = "2021",

month = jun,

day = "25",

doi = "10.1016/j.jallcom.2021.159103",

language = "English",

volume = "867",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - A high-strength AlSiMg1.4 alloy fabricated by selective laser melting

AU - Geng, Yaoxiang

AU - Wang, Yingmin

AU - Xu, Junhua

AU - Mi, Shaobo

AU - Fan, Shimin

AU - Xiao, Yakai

AU - Wu, Yi

AU - Luan, Junhua

PY - 2021/6/25

Y1 - 2021/6/25

N2 - A high Mg-content AlSiMg1.4 alloy was designed for selective laser melting (SLM) processing. The SLMed AlSiMg1.4 alloy exhibits a high yield strength of 341±14 MPa and a high ultimate tensile strength of 518±6 MPa, along with a total elongation of 7.1±0.4%. The composition profile in the α-Al matrix of the alloy manifests in-phase concentration fluctuations of Mg and Si. The presence of high density Mg-Si atomic clusters as strong obstacles to dislocation gliding is suggested to provide an additional strengthening mechanism for the SLMed Al-Si-Mg alloy.

AB - A high Mg-content AlSiMg1.4 alloy was designed for selective laser melting (SLM) processing. The SLMed AlSiMg1.4 alloy exhibits a high yield strength of 341±14 MPa and a high ultimate tensile strength of 518±6 MPa, along with a total elongation of 7.1±0.4%. The composition profile in the α-Al matrix of the alloy manifests in-phase concentration fluctuations of Mg and Si. The presence of high density Mg-Si atomic clusters as strong obstacles to dislocation gliding is suggested to provide an additional strengthening mechanism for the SLMed Al-Si-Mg alloy.

KW - AlSiMg1.4 alloy

KW - Mechanical properties

KW - Microstructure

KW - Selective laser melting

UR - http://www.scopus.com/inward/record.url?scp=85100960354&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85100960354&origin=recordpage

U2 - 10.1016/j.jallcom.2021.159103

DO - 10.1016/j.jallcom.2021.159103

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 867

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 159103

ER -

A high-strength AlSiMg1.4 alloy fabricated by selective laser melting

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ResFac: Inter-University 3D Atom Probe Tomography Unit

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A high-strength AlSiMg1.4 alloy fabricated by selective laser melting

Abstract

Research Keywords

UN SDGs

Access Output

Other Access Options

Permanent Link

Other Files and Links

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ResFac: Inter-University 3D Atom Probe Tomography Unit

Cite this