Stir casting process for manufacture of Al–SiC composites
By Shahin Soltani, R. Azari Khosroshahi, R. Taherzadeh Mousavian, Zhengyi Jiang, Alireza Fadavi Boostani, Dermot Brabazon. Rare Metals, 2017
242 citations recorded by the source corpus.
Abstract Stir casting is an economical process for the fabrication of aluminum matrix composites. There are many parameters in this process, which affect the final microstructure and mechanical properties of the composites. In this study, micron-sized SiC particles were used as reinforcement to fabricate Al-3 wt% SiC composites at two casting temperatures (680 and 850 °C) and stirring periods (2 and 6 min). Factors of reaction at matrix/ceramic interface, porosity, ceramic incorporation, and agglomeration of the particles were evaluated by scanning electron microscope (SEM) and high-resolution transition electron microscope (HRTEM) studies. From microstructural characterizations, it is concluded that the shorter stirring period is required for ceramic incorporation to achieve metal/ceramic bonding at the interface. The higher stirring temperature (850 °C) also leads to improved ceramic incorporation. In some cases, shrinkage porosity and intensive formation of Al4C3 at the metal/ceramic interface are also observed. Finally, the mechanical properties of the composites were evaluated, and their relation with the corresponding microstructure and processing parameters of the composites was discussed.
Subfields: Ceramics and Composites, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/cb08525493baf0bdd560ad74ddcc553de1f24e00
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Citations in the corpus
- A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites (2020, background): “Its advantages lie in simplicity, flexibility, and applicability to large volume production [14].”
- Processing issues, machining, and applications of aluminum metal matrix composites (2018, background): “, holding temperature,([26]) stirring speed,([37,49,50]) impeller size,([51]) and the impeller position.”