Fabrication and characterization of Al5083-2 wt.% SiO2 composite and its aging behavior

The Al5083-2 wt.% SiO2 composite was fabricated using stir casting method. The properties of the composite and its aging behavior were systematically studied. The Al5083-2 wt.% SiO2 composite ingots were aged at 160, 190 and 210 °C up to 23 hrs. Microstructure and mechanical properties of the ingot...

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Bibliographic Details
Main Authors: Khamsuk, S., Nakvachiratrakul, C., Chomsaeng, N.
Format: Conference Proceeding
Language:English
Subjects:
Aging
Casting
Electron microscopes
Hardness
Ingot casting
Ingots
Magnesium compounds
Mechanical properties
Metal silicides
Silicon dioxide
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Summary:The Al5083-2 wt.% SiO2 composite was fabricated using stir casting method. The properties of the composite and its aging behavior were systematically studied. The Al5083-2 wt.% SiO2 composite ingots were aged at 160, 190 and 210 °C up to 23 hrs. Microstructure and mechanical properties of the ingot and aged specimens were characterized using Scanning electron microscope (SEM), X-Ray diffraction (XRD) and hardness tester. The results revealed that a new compound was formed during casting process. However, an unreacted SiO2 particle was also observed. Hardness of specimen increased with a decreasing aging temperature. The enhanced hardness caused by the present of the Mg2Si precipitate.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0022966