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Mechanical and fatigue properties of functionally graded aluminium silicon alloys
Chirita, GeorgelTese de doutoramento em Engenharia Mecânica (ramo de conhecimento em Mecânica de Materiais) ; Many structural components encounter service conditions and, hence, required materials performance, which vary with location within the component. It is well known that abrupt transitions in materials composition and properties within a component often result in sharp local concentrations of stress, whether the stress...
On assessment of processing variables on vertical centrifugal casting technique
Chirita, Georgel; Stefanescu, I.; Barbosa, J.; Puga, Hélder; Soares, Delfim; Silva, Filipe SamuelThe aim of the present study is to investigate the influence of the vertical centrifugal casting technique over mechanical and metallurgical properties of a hypereutectic Al–18Si alloy. Due to the inherent vibration of the centrifugal casting technique, and in order to study and understand the individual effects of the equipment vibration and the centrifugal force itself (pressure or fluid dynamics), as well as...
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