Mechanical Engineering Faculty Research
Title
The Tensile Response and Fracture Behavior of 2009 Aluminum Alloy Metal Matrix Composite
Document Type
Article
Publication Date
Spring 4-15-2003
Abstract
In this research paper the tensile properties and fracture characteristics of aluminum alloy 2009 discontinuously reinforced with silicon carbide particulates (SiCp) are presented and discussed. The increased strength of the Al 2009/SiCp composite is attributed to the synergistic influences of residual stresses generated due to intrinsic differences in thermal expansion coefficients between the composite constituents, strengthening from constrained plastic flow and triaxiality in the ductile aluminum alloy metal matrix due to the presence of ceramic particle reinforcements. Fracture on a microscopic scale comprised of cracking of the individual and clusters of SiC particles present in the microstructure. Final fracture of the composite resulted from crack propagation through the matrix between the clusters of reinforcing SiC particles. The key mechanisms governing the tensile fracture process are elucidated.
Publication Title
Materials Science and Engineering: A
Volume
346
Issue
1-2
First Page
91
Last Page
100
Recommended Citation
Srivatsan, Tirumalai S.; Al-Hajri, Meslet; Smith, C.; and Petraroli, M., "The Tensile Response and Fracture Behavior of 2009 Aluminum Alloy Metal Matrix Composite" (2003). Mechanical Engineering Faculty Research. 616.
https://ideaexchange.uakron.edu/mechanical_ideas/616