Tensile and Creep Behavior of Extruded AA6063/SiC{sub p} Al MMCs

Journal Article · Mon Mar 01 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3366502· OSTI ID:21371090

Khalifa, Tarek A; Mahmoud, Tamer S ^[1]

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1. Mechanical Engineering Department, Shoubra Faculty of Engineering, Benha University, Cairo (Egypt)

Composites of AA6063 Al alloy reinforced with SiC particles (SiC{sub p}) were prepared by the vortex method. Hot extrusion was carried out for the as cast composites with a reduction in area of 25%. Tensile and creep behavior of as-cast and extruded composites were studied at elevated temperatures. Tensile tests carried out at room temperature showed that for the as-cast composites, the addition of SiC{sub p} up to 10% by weight improves the strength but reduces ductility. Further addition of SiC{sub p} reduces the strength and ductility of the composites. At 150 and 300 deg. C the matrix alloy exhibits higher strength than the composites. Extrusion generally raised the strength of the composites at both room and elevated temperatures. Time rupture creep tests carried out at 300 deg. C showed that the composites exhibit higher creep resistance as compared to the matrix alloy except at relatively low stresses where the matrix has a better creep resistance. Extrusion improved the resistance of composites to creep rupture.

• OSTI ID: 21371090
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1220; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CREEP
DUCTILITY
EXTRUSION
FABRICATION
FAILURES
FRACTURES
MATERIALS
MATERIALS WORKING
MATRIX MATERIALS
MECHANICAL PROPERTIES
REINFORCED MATERIALS
RUPTURES
SILICON CARBIDES
SILICON COMPOUNDS
STRESSES
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
VORTICES