In this work, we describe the strategies that we adopted to improve the processability of two high-strength Al alloys produced by Laser Powder bed Fusion (L-PBF). Many alloys of the 2xxx, 6xxx and 7xxx series are indeed very susceptible to hot cracking. To overcome this problem, we explored the effect of different alloying elements on the L-PBF processability of Al-Cu-Mg and Al-Zn-Mg-Cu high-strength alloys. The design of the new alloys was supported by thermodynamic simulations. The microstructure and phase transformations of the materials were investigated by optical and electron microscopy.
Strategies to design high-strength Al alloys with improved L-PBF processability
F. Belelli;R. Casati;M. Vedani;
2020-01-01
Abstract
In this work, we describe the strategies that we adopted to improve the processability of two high-strength Al alloys produced by Laser Powder bed Fusion (L-PBF). Many alloys of the 2xxx, 6xxx and 7xxx series are indeed very susceptible to hot cracking. To overcome this problem, we explored the effect of different alloying elements on the L-PBF processability of Al-Cu-Mg and Al-Zn-Mg-Cu high-strength alloys. The design of the new alloys was supported by thermodynamic simulations. The microstructure and phase transformations of the materials were investigated by optical and electron microscopy.File in questo prodotto:
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