Growth of intermetallic phases in Al/Cu composites at various annealing temperatures during the ARB process
- 271 Downloads
The purpose of this study is to discuss the effect of annealing temperatures on growth of intermetallic phases in Al/Cu composites during the accumulative roll bonding (ARB) process. Pure Al (AA1100) and pure Cu (C11000) were stacked into layered structures at 8 cycles as annealed at 300 °C and 400 °C using the ARB technique. Microstructural results indicate that the necking of layered structures occur after 300 °C annealing. Intermetallic phases grow and form a smashed morphology of Al and Cu when annealed at 400 °C. From the XRD and EDS analysis results, the intermetallic phases of Al2Cu (θ) and Al4Cu9 (γ2) formed over 6 cycles and the AlCu (η2) precipitated at 8 cycles after 300 °C annealing. Three phases (Al2Cu (θ), Al4Cu9 (γ2), and AlCu (η2)) were formed over 2 cycles after 400 °C annealing.
Key wordscomposites annealing diffusion microstructure precipitation
Unable to display preview. Download preview PDF.
- 2.Y. Saito, N. Tsuji, H. Utsunomiya, T. Sakai, and R.G. Hong, J. Japan Inst. Met. 63, 790 (1999).Google Scholar
- 9.K. K. Chawla, Composite Mater. Sci. Eng. 2 nd ed., pp.164–211, Springer Science, New York (2001).Google Scholar
- 10.A. B. Strong, Mater., Methods and Applications, 2 nd ed., pp.1–46, Society of Manufacturing Engineers, Dearborn, Michigan (2007).Google Scholar
- 11.I. M. Daniel and O. Ishai, Engineering Mechanics of Composite Materials, 2 nd ed., pp.3–31, Oxford University Press, New York (2005).Google Scholar
- 14.W. D. Callister Jr., Mater. Sci. Eng. An Introduction, 6th ed., pp.101–102, John Wiley & Sons, Inc., New York (2003).Google Scholar