Laser powder bed fusion of Zr-modified Al–Cu–Mg alloy: Crack-inhibiting, grain refinement, and mechanical properties

The application of laser powder bed fusion (L-PBF) in conventional high-strength wrought aluminum alloys is a significant challenge due to its high cracking sensitivity. In this study, 2024Al and 1.3-wt% Zr-modified 2024Al alloy deposits were prepared by L-PBF using pre-alloyed powder. The solidific...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2022-03, Vol.838, p.142618, Article 142618
Hauptverfasser:	Wang, Yanfang, Lin, Xin, Kang, Nan, Wang, Zihong, Wang, Qingzheng, Liu, Yuxi, Huang, Weidong
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy powders Alloys Aluminum base alloys Al–Cu–Mg alloy Chemical precipitation Columnar structure Columnar-to-equiaxed transition Copper Crack sensitivity Crack-inhibiting Elongation Grain refinement Grain structure Heat treatment High strength alloys Laser applications Laser powder bed fusion Magnesium Mechanical properties Nanoparticles Nucleation Powder beds Solidification Supercooling Tensile properties Ultimate tensile strength Ultrafines Yield strength Zirconium
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