New Aluminum Alloys Specifically Designed for Laser Powder Bed Fusion: A Review

被引：188

作者：

Aversa, Alberta ^{[1
]}

Marchese, Giulio ^{[1
]}

Saboori, Abdollah ^{[1
]}

Bassini, Emilio ^{[1
]}

Manfredi, Diego ^{[2
]}

Biamino, Sara ^{[1
]}

Ugues, Daniele ^{[1
]}

Fino, Paolo ^{[1
]}

Lombardi, Mariangela ^{[1
]}

机构：

[1] Politecn Torino, Dept Appl Sci & Technol, Corso Duca Abruzzi 24, I-10129 Turin, Italy

[2] Ist Italiano Tecnol, Ctr Sustainable Future Technol CSFT PoliTo, Via Livorno 60, I-10144 Turin, Italy

来源：

MATERIALS | 2019年 / 12卷 / 07期

关键词：

laser powder bed fusion; additive manufacturing; aluminum; composition; mechanical properties; CU-MG ALLOYS; MECHANICAL-PROPERTIES; ALSI10MG ALLOY; STRENGTHENING MECHANISMS; MICROSTRUCTURE EVOLUTION; MELTING MICROSTRUCTURE; RAPID SOLIDIFICATION; TENSILE DEFORMATION; GAS ATOMIZATION; HEAT-TREATMENT;

D O I：

10.3390/ma12071007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aluminum alloys are key materials in additive manufacturing (AM) technologies thanks to their low density that, coupled with the possibility to create complex geometries of these innovative processes, can be exploited for several applications in aerospace and automotive fields. The AM process of these alloys had to face many challenges because, due to their low laser absorption, high thermal conductivity and reduced powder flowability, they are characterized by poor processability. Nowadays mainly Al-Si alloys are processed, however, in recent years many efforts have been carried out in developing new compositions specifically designed for laser based powder bed AM processes. This paper reviews the state of the art of the aluminum alloys used in the laser powder bed fusion process, together with the microstructural and mechanical characterizations.

引用

页数：19

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