Abstract
High performance composites on the basis of aluminium alloy matrix and alumina-silica continuous fibres were studied from the point of view of their response to age hardening treatment as compared to the unreinforced matrix alloy. The changes were monitored by following the microhardness of the matrix and the electrical resistivity of the materials examined. It was observed that the matrix of the composites showed considerably more hardening effect than the matrix of the unreinforced alloy inspite of the fibre being innert to the matrix alloy. The resistivity changes in the composites during the ageing process indicated that appreciable internal stress continued to persist in the composite material well after overageing and hardness decline took place. EDX evaluation of regions close to the fibres indicated a higher magnesium content as compared to the regions away from the fibres.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
R. J. Arsenault, and R. M. Fisher, Microstructure of fiber and particulate SiC in 6061 Al composites, Scripta Metallurgica. 17:67–71 (1983).
Y. Song and T.N. Baker, Accelerated aging response in ceramic reinforced AA 6061 composites, Materials Sci. Tech. 10:406–413 (1994).
M. Vogelsang, R. J. Arsenault, and R. M. Fisher, An in situ HVEM study of dislocation generation at Al/SiC interface in metal matrix composites, Met. Trans.A. 17A:379–389 (1986).
M. B. House, K. C. Meinert, and R. B. Bhagat, The aging response and creep of DRA composites, Journal of Metals. 43(8): 24–28 (1991).
K. K. Chawla, and M. Metzger, Initial dislocation distributions in tungsten fibre/copper composites, J. Mat. Sci. 7: 34–39 (1972).
Sumitomo Metal Co, Tokyo, Japan. “Altex Fibres, Product information”.
A.G. Guy, C.S. Barrett and R.F. Mehl, Age hardening in Copper Beryllium alloys, Trans. A.I.M.E. 175: 216 (1948).
J. B. Shamsul, N. Jomin, R. S. Bushby, and V. D. Scott, Fabrication, microstructure and ageing characteristics of aluminimum alloy (6061) reinforced with Altex fibre, in: “Proceedings of the International conference on Recent Advances in Materials and Mineral Resources,” Universiti Sains Malaysia, Penang, Malaysia, 212–221 (1994).
M. Yang and V. D. Scott,, Microstructural studies of aluminium-silicon alloy reinforced with alumina fibres, J. Mat. Sci. 26: 2245–2254 (1991).
P.R. Khangaonkar, J.B. Shamsul, and R. Azmi, Age hardening of 6061/alumina silica fibre composites, in: “Symposium on High Performance Composites: Commonality of Phenomena,” K. K. Chawla, ed., TMS, Warrandale, PA USA, 435–443 (1994).
R. J. Arsenault, Strengthening of metal matrix composites due to dislocation generation through CTE mismatch, in: “Metal matrix composites: Mechanisms and Properties”, R. K. Everett and R. J. Arsenault, eds., The Academic Press, Boston MA):79–100 (1991).
C. M. Friend, I. Horsfall, S. D. Luxon, and R. J. Young, The effect of fibre matrix interfaces on the age hardening characteristics of б-alumina fibre reinforced AA6061, in: “Cast metal matrix composites”, S. G. Fishman and A. K. Dhingra, eds., ASM International: 309–315 (1988).
A. Badini, F. Marino, and A. Tomasi, Natural aging characteristics of aluminium alloy 6061 reinforced with SiC whiskers and particles, Material Science and Engineering, 136A:99–107 (1991).
D. Srinivasan, and M. K. Surappa, Effect of iron impurity and thermomechanical processing on the age hardening behaviour of 6061 Al-SiCp MMC produced by casting route, Scripta Metallurgica et Materialia, 27:1139–1144 (1992).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Springer Science+Business Media New York
About this chapter
Cite this chapter
Rahmat, A., Baharin, S., Khangaonkar, P.R. (1995). Heat Treatment Behaviour of Metal Matrix Composites. In: Prasad, P.N., Mark, J.E., Fai, T.J. (eds) Polymers and Other Advanced Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0502-4_16
Download citation
DOI: https://doi.org/10.1007/978-1-4899-0502-4_16
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-0504-8
Online ISBN: 978-1-4899-0502-4
eBook Packages: Springer Book Archive