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

41 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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

AlSiMg1.4 alloy
Mechanical properties
Microstructure
Selective laser melting

Access Output

10.1016/j.jallcom.2021.159103

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{96914c72e06f4a60aeed1103b1eff106,

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.",

}

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 - https://www.scopus.com/pages/publications/85100960354

UR - https://www.scopus.com/pages/publications/85100960354#tab=impact

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

Abstract

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

ResFac: Inter-University 3D Atom Probe Tomography Unit

Cite this

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

Abstract

UN SDGs

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ResFac: Inter-University 3D Atom Probe Tomography Unit

Cite this