Enhancing mechanical properties of additively manufactured AlSi10Mg alloy via Graphene oxide modification

Changyi Yang; Peng Yan; Zhenhua Li; Haiping Zhang; Chaoli Ma; Wenlong Xiao

doi:10.1016/j.matlet.2026.140310

Enhancing mechanical properties of additively manufactured AlSi10Mg alloy via Graphene oxide modification

Changyi Yang
, Peng Yan
, Zhenhua Li
, Haiping Zhang
, Chaoli Ma
, Wenlong Xiao^*

^*此作品的通讯作者

材料科学与工程学院

Beihang University
Kunming University of Science and Technology

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

Additively manufactured graphene-reinforced aluminum matrix composites (AMCs) demonstrate unique application potential. This study presents a novel approach to strengthening AlSi10Mg alloy by incorporating Graphene Oxide (GO) via laser powder bed fusion (LPBF). Microstructural characterization revealed that the incorporated GO was well preserved without detectable carbide formation and promoted the in-situ formation of nanoscale precipitates. Consequently, the AlSi10Mg/GO composite exhibited significantly enhanced mechanical properties, achieving an ultimate tensile strength of 457 ± 8 MPa, a fracture elongation of 7.7 ± 0.9%, and a superior work-hardening capacity. This strengthening is attributed to a multiscale synergistic effect involving micrometer-sized GO dispersion, coherent nanoscale Al₃Mg₂ precipitates, and finely dispersed Al₂O₃ particles. These aspects collectively offer a new pathway for designing high-performance AM composites via controlled in-situ reactions.

源语言	英语
文章编号	140310
期刊	Materials Letters
卷	411
DOI	https://doi.org/10.1016/j.matlet.2026.140310
出版状态	已出版 - 15 5月 2026

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title = "Enhancing mechanical properties of additively manufactured AlSi10Mg alloy via Graphene oxide modification",

abstract = "Additively manufactured graphene-reinforced aluminum matrix composites (AMCs) demonstrate unique application potential. This study presents a novel approach to strengthening AlSi10Mg alloy by incorporating Graphene Oxide (GO) via laser powder bed fusion (LPBF). Microstructural characterization revealed that the incorporated GO was well preserved without detectable carbide formation and promoted the in-situ formation of nanoscale precipitates. Consequently, the AlSi10Mg/GO composite exhibited significantly enhanced mechanical properties, achieving an ultimate tensile strength of 457 ± 8 MPa, a fracture elongation of 7.7 ± 0.9\%, and a superior work-hardening capacity. This strengthening is attributed to a multiscale synergistic effect involving micrometer-sized GO dispersion, coherent nanoscale Al3Mg2 precipitates, and finely dispersed Al2O3 particles. These aspects collectively offer a new pathway for designing high-performance AM composites via controlled in-situ reactions.",

keywords = "Additive manufacturing, AlSi10Mg, Graphene oxide, Mechanical properties, Microstructure",

author = "Changyi Yang and Peng Yan and Zhenhua Li and Haiping Zhang and Chaoli Ma and Wenlong Xiao",

note = "Publisher Copyright: {\textcopyright} 2026 Elsevier B.V.",

year = "2026",

month = may,

day = "15",

doi = "10.1016/j.matlet.2026.140310",

language = "英语",

volume = "411",

journal = "Materials Letters",

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TY - JOUR

T1 - Enhancing mechanical properties of additively manufactured AlSi10Mg alloy via Graphene oxide modification

AU - Yang, Changyi

AU - Yan, Peng

AU - Li, Zhenhua

AU - Zhang, Haiping

AU - Ma, Chaoli

AU - Xiao, Wenlong

PY - 2026/5/15

Y1 - 2026/5/15

N2 - Additively manufactured graphene-reinforced aluminum matrix composites (AMCs) demonstrate unique application potential. This study presents a novel approach to strengthening AlSi10Mg alloy by incorporating Graphene Oxide (GO) via laser powder bed fusion (LPBF). Microstructural characterization revealed that the incorporated GO was well preserved without detectable carbide formation and promoted the in-situ formation of nanoscale precipitates. Consequently, the AlSi10Mg/GO composite exhibited significantly enhanced mechanical properties, achieving an ultimate tensile strength of 457 ± 8 MPa, a fracture elongation of 7.7 ± 0.9%, and a superior work-hardening capacity. This strengthening is attributed to a multiscale synergistic effect involving micrometer-sized GO dispersion, coherent nanoscale Al3Mg2 precipitates, and finely dispersed Al2O3 particles. These aspects collectively offer a new pathway for designing high-performance AM composites via controlled in-situ reactions.

AB - Additively manufactured graphene-reinforced aluminum matrix composites (AMCs) demonstrate unique application potential. This study presents a novel approach to strengthening AlSi10Mg alloy by incorporating Graphene Oxide (GO) via laser powder bed fusion (LPBF). Microstructural characterization revealed that the incorporated GO was well preserved without detectable carbide formation and promoted the in-situ formation of nanoscale precipitates. Consequently, the AlSi10Mg/GO composite exhibited significantly enhanced mechanical properties, achieving an ultimate tensile strength of 457 ± 8 MPa, a fracture elongation of 7.7 ± 0.9%, and a superior work-hardening capacity. This strengthening is attributed to a multiscale synergistic effect involving micrometer-sized GO dispersion, coherent nanoscale Al3Mg2 precipitates, and finely dispersed Al2O3 particles. These aspects collectively offer a new pathway for designing high-performance AM composites via controlled in-situ reactions.

KW - Additive manufacturing

KW - AlSi10Mg

KW - Graphene oxide

KW - Mechanical properties

KW - Microstructure

UR - https://www.scopus.com/pages/publications/105031267890

U2 - 10.1016/j.matlet.2026.140310

DO - 10.1016/j.matlet.2026.140310

M3 - 文章

AN - SCOPUS:105031267890

SN - 0167-577X

VL - 411

JO - Materials Letters

JF - Materials Letters

M1 - 140310

ER -

Enhancing mechanical properties of additively manufactured AlSi10Mg alloy via Graphene oxide modification

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