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

被引：3

作者：

Cha, Wenhao ^{[1
,2
]}

Li, Gan ^{[3
,4
,5
,6
]}

He, Xi ^{[6
]}

Li, Jie ^{[7
]}

Li, Daoxiu ^{[7
]}

Liu, Xiangfa ^{[7
]}

Zhu, Qiang ^{[6
]}

Liu, Sida ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Aerosp, Lab Multiscale Mech & Med Sci, SV LAB, Xian 710049, Peoples R China

[2] Rhein Westfal TH Aachen, Fac Georesources & Mat Engn, Aachen, Germany

[3] City Univ Hong Kong Matter Sci Res Inst Futian, Shenzhen, Peoples R China

[4] City Univ Hong Kong, Ctr Adv Struct Mat, Greater Bay Joint Div, Shenyang Natl Lab Mat Sci,Shenzhen Res Inst, Shenzhen, Peoples R China

[5] City Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China

[6] Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China

[7] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

来源：

MATERIALS RESEARCH LETTERS | 2025年 / 13卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Additive manufacturing; powder bed fusion - laser beam; AlSi10Mg alloy; Al-Ti-C-B master alloy; grain refinement; LASER MELTED ALSI10MG; MECHANICAL-PROPERTIES; HEAT-TREATMENT; FRACTURE-BEHAVIOR; MICROSTRUCTURE; AL-12SI;

D O I：

10.1080/21663831.2024.2449175

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 alpha-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.

引用

页码：311 / 319

页数：9

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