Mechanical Properties and Microstructures of SiC Fiber-reinforced Metal Matrix Composites Made Using Ultrasonic Consolidation

Abstract

Ultrasonic consolidation was used for making SiC fiber-reinforced Al 3003 matrix composites. Peel tests, tensile tests, and bend tests were carried out on the composite specimens as well as on ultrasonically consolidated Al 3003 specimens containing no SiC fibers. The objective of this study was to examine whether the ultrasonically embedded SiC fibers serve as effective reinforcements or not. Incorporation of SiC fibers resulted in a considerable improvement in peel strength and tensile strength of ultrasonically consolidated parts. However, bend tests revealed some deterioration in the shear strength of the parts due to the presence of fibers. The results of mechanical testing are discussed based on microstructural and fractographic studies.

Keywords

ultrasonic consolidation metal matrix composites microstructures mechanical properties fracture features.

References

White, D.R. ( 2003). Ultrasonic Consolidation of Aluminum Tooling, Advanced Materials and Processes, 161: 64-65.

George, J.L. ( 2006). Utilization of Ultrasonic Consolidation in Fabricating Satellite Decking, Master Thesis, Utah State University , Logan, Utah, USA.

Janaki Ram, G.D. , Robinson, C.J. , Yang, Y. and Stucker, B.E. (2007). Use of Ultrasonic Consolidation for Fabrication of Multi-material Structures, Rapid Prototyping Journal, 13: 226-235.

Siggard, E.J. ( 2007). Investigative Research into the Structural Embedding of Electrical and Mechanical Systems Using Ultrasonic Consolidation, Master Thesis, Utah State University, Logan, Utah, USA.

Janaki Ram, G.D. , Yang, Y. and Stucker, B.E. (2006). Effect of Process Parameters on Bond Formation During Ultrasonic Consolidation of Aluminum Alloy 3003, Journal of Manufacturing Systems, 25(3): 221-238.

Daniels, H.P.C. (1965). Ultrasonic Welding, Ultrasonics, 3: 190-196.

Kong, C.Y. ( 2005). Investigation of Ultrasonic Consolidation for Embedding Active/Passive Fibers in Aluminum Matrices, Doctoral Thesis, Loughborough University, Loughborough, UK.

Kong, C.Y. and Soar, R.C. ( 2005). Fabrication of Metal-Matrix Composites and Adaptive Composites using Ultrasonic Consolidation Process, Materials Science and Engineering A, 412: 12-18.

Yang, Y. , Janaki Ram, G.D. and Stucker, B.E. ( 2007). An Experimental Determination of Optimum Processing Parameters for Al/SiC Metal Matrix Composites made using Ultrasonic Consolidation, Journal of Engineering Materials and Technology, 129: 538-549.

10.

Li, D. and Soar, R.C. ( 2008). Plastic Flow and Work Hardening of Al Alloy Matrices during Ultrasonic Consolidation Fiber Embedding Process, Materials Science and Engineering A, 498: 421-429.

11.

Yang, Y. , Janaki Ram, G.D. and Stucker, B.E. ( 2009). Bond Formation and Fiber Embedment during Ultrasonic Consolidation, Journal of Materials Processing Technology , 209(10): 4915-4924.

12.

Janaki Ram, G.D. , Yang, Y. , Nylander, C. , Aydelotte, B. , Stucker, B.E. and Adams, B.L. (2007). Interface Microstructures and Bond Formation in Ultrasonic Consolidation, In: Proceedings of 18th Solid Freeform Fabrication Symposium, Austin, TX, USA, August.

13.

Zhu, Z. , Wynne, B.P. and Ghassemieh, E. ( 2008). Microstructural Evolution of SiC Fiber Embedded AA6061 Matrix Induced by Ultrasonic Consolidation, In: MRS Spring Meeting, San Francisco, CA, 24-28 March, (paper # 1075-J05-03).