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Nano silicon carbide/zirconia particles embedded with AlSi10Mg alloy: Characteristics study
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DOI：10.1007/s12206-026-0224-y.png)
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Abstract
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This research enriches the functional properties of an aluminium alloy (AlSi10Mg) featuring 0-6 wt% nano-silicon carbide (SiC-50 nm) and 2 wt% zirconia (ZrO2) via laser powder bed melting (LPBM) technology with a 90 & micro;m hatch spacing under an argon (Ar) build atmosphere. The AlSi10Mg alloy with varying SiC weight percentages undergoes an ageing treatment that minimises residual stress and prevents crack formation. Influences of LPBM, the ageing process, and contribution of SiC/ZrO2 nanoparticles on microstructural behaviour of AlSi10Mg alloy with and without nano SiC/ZrO2 analyzed via transmission electron microscope. They revealed even particle dispersion with a grain size of 5-14 & micro;m. Based on the investigation, the AlSi10Mg-6 wt%SiC-2 wt%ZrO2 is found to have the highest yield & tensile strengths (321 MPa and 463 MPa), better impact toughness (14.3 J/mm2), and improved Vickers hardness (178 HV).
Keywords:
AlSi10Mg alloy
Laser powder bed melting
Microstructural
Mechanical properties
Silicon carbide
Zirconia
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