ALUMINUM-COPPER-MANGANESE-ZIRCONIUM ALLOYS FOR METAL ADDITIVE MANUFACTURING

ALUMINUM-COPPER-MANGANESE-ZIRCONIUM ALLOYS FOR METAL ADDITIVE MANUFACTURING

Aluminum-copper-manganese-zirconium alloys for metal additive manufacturing include 5 wt % to 35 wt % copper, 0.05 wt % to 3 wt % manganese, 0.5 wt % to 5 wt % zirconium, 0 wt % to 3 wt % iron, and 0 wt % to less than 1 wt % silicon, with the balance being aluminum. The as-printed alloys may have a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Haynes, James A, Yang, Ying, Plotkowski, Alexander J, Sisco, Kevin D, Shyam, Amit, Bahl, Sumit, Dehoff, Ryan R
Format: Patent
Sprache:eng
Schlagworte:
ADDITIVE MANUFACTURING TECHNOLOGY
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:Aluminum-copper-manganese-zirconium alloys for metal additive manufacturing include 5 wt % to 35 wt % copper, 0.05 wt % to 3 wt % manganese, 0.5 wt % to 5 wt % zirconium, 0 wt % to 3 wt % iron, and 0 wt % to less than 1 wt % silicon, with the balance being aluminum. The as-printed alloys may have a microstructure comprising θ′ intermetallic precipitates having an average diameter of 0.1 μm to 0.3 μm, a microstructure comprising θ intermetallic particles having particle spacing of 50-500 nm with a volume fraction of 0-50%; a microstructure comprising a bimodal distribution of equiaxed grains and columnar grains, or any combination thereof. The as-printed alloys may exhibit superior mechanical properties compared to cast alloys with a similar composition.