Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy

Wenhao Cha; Gan Li; Xi He; Jie Li; Daoxiu Li; Xiangfa Liu; Qiang Zhu; Sida Liu

doi:10.1080/21663831.2024.2449175

Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy

Wenhao Cha (Co-first Author)
, Gan Li (Co-first Author)
, Xi He (Co-first Author)
, Jie Li (Co-first Author)
, Daoxiu Li (Co-first Author)
, Xiangfa Liu^* (Co-first Author)
, Qiang Zhu^* (Co-first Author)
, Sida Liu^* (Co-first Author)

^*Corresponding author for this work

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

16 Citations (Scopus)

4 Downloads (CityUHK Scholars)

Abstract

Actualizing the near net-shaping of lightweight aluminum (Al) alloys with both superior mechanical performance and complex geometry remains challenging. To address this issue, novel Al–Ti–C–B (TCB) master alloy powders were tailored as effective inoculators and introduced into the AlSi10Mg alloy powders to promote the heterogeneous nucleation of α-Al during powder bed fusion using laser beam (PBF-LB), leading to pronounced heterogeneous microstructure with bimodal fine-grains and improved distribution of eutectic Si. The modified alloy with a more refined and homogeneous microstructure exhibited an excellent strength–ductility combination due to microstructure modification, outperforming most previously reported commercial Al–Si alloys. © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Original language	English
Pages (from-to)	311-319
Number of pages	9
Journal	Materials Research Letters
Volume	13
Issue number	4
Online published	7 Jan 2025
DOIs	https://doi.org/10.1080/21663831.2024.2449175
Publication status	Published - Apr 2025

UN SDGs

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

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

Additive manufacturing
AlSi10Mg alloy
Al–Ti–C–B master alloy
grain refinement
powder bed fusion–laser beam

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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10.1080/21663831.2024.2449175

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title = "Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy",

abstract = "Actualizing the near net-shaping of lightweight aluminum (Al) alloys with both superior mechanical performance and complex geometry remains challenging. To address this issue, novel Al–Ti–C–B (TCB) master alloy powders were tailored as effective inoculators and introduced into the AlSi10Mg alloy powders to promote the heterogeneous nucleation of α-Al during powder bed fusion using laser beam (PBF-LB), leading to pronounced heterogeneous microstructure with bimodal fine-grains and improved distribution of eutectic Si. The modified alloy with a more refined and homogeneous microstructure exhibited an excellent strength–ductility combination due to microstructure modification, outperforming most previously reported commercial Al–Si alloys. {\textcopyright} 2025 The Author(s). Published by Informa UK Limited, trading as Taylor \& Francis Group.",

keywords = "Additive manufacturing, AlSi10Mg alloy, Al–Ti–C–B master alloy, grain refinement, powder bed fusion–laser beam",

author = "Wenhao Cha and Gan Li and Xi He and Jie Li and Daoxiu Li and Xiangfa Liu and Qiang Zhu and Sida Liu",

year = "2025",

month = apr,

doi = "10.1080/21663831.2024.2449175",

language = "English",

volume = "13",

pages = "311--319",

journal = "Materials Research Letters",

issn = "2166-3831",

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Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy. / Cha, Wenhao (Co-first Author); Li, Gan (Co-first Author); He, Xi (Co-first Author) et al.
In: Materials Research Letters, Vol. 13, No. 4, 04.2025, p. 311-319.

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

TY - JOUR

T1 - Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy

AU - Cha, Wenhao

AU - Li, Gan

AU - He, Xi

AU - Li, Jie

AU - Li, Daoxiu

AU - Liu, Xiangfa

AU - Zhu, Qiang

AU - Liu, Sida

PY - 2025/4

Y1 - 2025/4

N2 - Actualizing the near net-shaping of lightweight aluminum (Al) alloys with both superior mechanical performance and complex geometry remains challenging. To address this issue, novel Al–Ti–C–B (TCB) master alloy powders were tailored as effective inoculators and introduced into the AlSi10Mg alloy powders to promote the heterogeneous nucleation of α-Al during powder bed fusion using laser beam (PBF-LB), leading to pronounced heterogeneous microstructure with bimodal fine-grains and improved distribution of eutectic Si. The modified alloy with a more refined and homogeneous microstructure exhibited an excellent strength–ductility combination due to microstructure modification, outperforming most previously reported commercial Al–Si alloys. © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

AB - Actualizing the near net-shaping of lightweight aluminum (Al) alloys with both superior mechanical performance and complex geometry remains challenging. To address this issue, novel Al–Ti–C–B (TCB) master alloy powders were tailored as effective inoculators and introduced into the AlSi10Mg alloy powders to promote the heterogeneous nucleation of α-Al during powder bed fusion using laser beam (PBF-LB), leading to pronounced heterogeneous microstructure with bimodal fine-grains and improved distribution of eutectic Si. The modified alloy with a more refined and homogeneous microstructure exhibited an excellent strength–ductility combination due to microstructure modification, outperforming most previously reported commercial Al–Si alloys. © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

KW - Additive manufacturing

KW - AlSi10Mg alloy

KW - Al–Ti–C–B master alloy

KW - grain refinement

KW - powder bed fusion–laser beam

UR - https://www.scopus.com/pages/publications/105002495813

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105002495813&origin=recordpage

U2 - 10.1080/21663831.2024.2449175

DO - 10.1080/21663831.2024.2449175

M3 - RGC 21 - Publication in refereed journal

SN - 2166-3831

VL - 13

SP - 311

EP - 319

JO - Materials Research Letters

JF - Materials Research Letters

IS - 4

ER -

Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy

Abstract

UN SDGs

Research Keywords

Publisher's Copyright Statement

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